165 results on '"Peter Verheyen"'
Search Results
2. 110GHz Through-Silicon Via’s Integrated in Silicon Photonics Interposers for Next-Generation Optical Modules
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Nicolas Pantano, Lieve Bogaerts, Xiao Sun, Philippe Absil, Peter Verheyen, Kenichi Miyaguchi, Joris Van Campenhout, Marianna Pantouvaki, Dimitrios Velenis, and Yoojin Ban
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Silicon photonics ,Materials science ,Through-silicon via ,business.industry ,Interposer ,Optoelectronics ,business - Published
- 2021
3. Continuously Tunable Silicon Photonic MEMS $2 \times 2$ Power Coupler
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Niels Quack, Alain Yuji Takabayashi, Wim Bogaerts, Peter Verheyen, Kristinn B. Gylfason, Hamed Sattari, and Pierre Edinger
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Microelectromechanical systems ,Technology and Engineering ,Silicon photonics ,Materials science ,silicon photonics ,Extinction ratio ,business.industry ,Photonic integrated circuit ,photonics ,photonic integrated circuits ,Optical switch ,Small form factor ,Modulation ,microelectromechanical systems ,optical switch ,Optoelectronics ,Photonics ,business - Abstract
The integration of MEMS transducers in photonic integrated circuits provides opportunities for high efficiency photonic modulation and dynamic routing on-chip. We here present an electrostatically actuated, silicon photonic MEMS $2 \times 2$ power coupler, fabricated in IMEC's iSiPP50G platform followed by a dedicated MEMS release sequence. The in-plane, mechanical tuning mechanism provides analog power coupling between waveguides in a small form factor. With our experimental demonstration of broad, > 30 nm optical bandwidth, high extinction ratio of > 27 dB, and a low actuation voltage of only 6 V, the coupler fulfills the requirements for large-scale integration in next generation reconfigurable PICs.
- Published
- 2021
4. Silicon photonic MEMS phase shifter with μs time constant built on a foundry platform
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Wim Bogaerts, Alain Yuji Takabayashi, Kristofer Kristinsson, Peter Verheyen, Hamed Sattari, Kristinn B. Gylfason, Niels Quack, Carlos Errando-Herranz, and Pierre Edinger
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Microelectromechanical systems ,Materials science ,Silicon photonics ,Technology and Engineering ,business.industry ,Time constant ,Phase (waves) ,Insertion loss ,Optoelectronics ,System on a chip ,business ,Phase shift module ,Power (physics) - Abstract
MEMS enable low power tuners in silicon photonics, but existing phase shifters lack in range, speed, and loss. We implement a 2π phase shifter with a 1.54 μs time constant and 0.5 dB insertion loss in IMEC’s iSiPP50G platform.
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- 2021
5. Low-Power Electro-Optic Actuators for Large-Scale Programmable Photonic Circuits
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Hamed Sattari, Niels Quack, Hong Deng, Xiangfeng Chen, Peter Verheyen, Wim Bogaerts, Lukas Van Iseghem, Alain Yuji Takabayashi, Kristinn B. Gylfason, Umar Khan, Pierre Edinger, and Antonio Ribeiro
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Microelectromechanical systems ,Silicon photonics ,Materials science ,Technology and Engineering ,business.industry ,Photonic integrated circuit ,Physics::Optics ,02 engineering and technology ,021001 nanoscience & nanotechnology ,7. Clean energy ,01 natural sciences ,Computer Science::Other ,010309 optics ,Computer Science::Hardware Architecture ,Computer Science::Emerging Technologies ,Liquid crystal ,0103 physical sciences ,Optoelectronics ,Photonics ,0210 nano-technology ,business ,Actuator ,Phase modulation ,Electronic circuit - Abstract
Photonic integrated circuits are becoming increasingly more complex, especially with the emergence of programmable photonic circuits. These require many tunable photonic elements, such as electro-optic phase shifters and tunable couplers. We will discuss our progress in compact, low-power silicon photonics actuators based on heaters, liquid crystal and MEMS that can be scaled up to large circuits. (c) 2021TheAuthor(s)
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- 2021
- Full Text
- View/download PDF
6. Efficient resonance management in ultrahigh-Q 1D photonic crystal nanocavities fabricated on 300 mm SOI CMOS platform
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Peter Verheyen, Joris Van Campenhout, Marianna Pantouvaki, Weiqiang Xie, and Dries Van Thourhout
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Materials science ,Silicon photonics ,Technology and Engineering ,silicon photonics ,business.industry ,photonic crystal nanocavities ,quality factors ,Resonance ,Soi cmos ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,filters ,reflectors ,Optoelectronics ,DROP FILTER ,business ,COMPACT ,Photonic crystal - Abstract
Photonic crystal (PhC) nanocavities have demonstrated unique capabilities in terms of light confinement and manipulation. As such, they are becoming attractive for developing novel resonance-based photonic integrated circuits (PICs). Here two essential challenges arise however-how to realize ultrahigh quality factor (Q) PhC cavities using standard fabrication processes compatible with large volume fabrication, and how to efficiently integrate them with existing building blocks. In this work, ultrahigh-Q one-dimensional (1D) PhC nanocavities fabricated on a 300 mm silicon-on-insulator wafer are demonstrated by optical lithography, with a record Q factor of up to 0.84 million. Moreover, efficient mode management in those cavities is shown by coupling them with an access waveguide, realizing two critical components: notch filters and narrow-band reflectors. In particular, they allow both single-wavelength and multi-wavelength operation, at the desired resonant wavelengths, over a broad wavelength range (>100 nm). Compared to traditional cavities, this offers a fantastic strategy for implementing resonances precisely in PIC designs with more freedom in terms of wavelength selectivity and the control of mode number. Given their compatibility with optical lithography and compact footprint, the realized 1D PhC nanocavities will be of profound significance for designing compact and novel resonance-based photonic components on large scale.
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- 2021
7. 60Gb/s waveguide-coupled O-band GeSi quantum-confined Stark effect electro-absorption modulator
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Yoojin Ban, Roger Loo, Marianna Pantouvaki, Clement Porret, S. Balakrishnan, Peter Verheyen, J. Van Campenhout, and S. A. Srinivasan
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Waveguide (electromagnetism) ,Materials science ,Extinction ratio ,business.industry ,Quantum-confined Stark effect ,symbols.namesake ,Stark effect ,Modulation ,Electro-absorption modulator ,symbols ,Bandwidth (computing) ,Optoelectronics ,Insertion loss ,business - Abstract
We report O-band GeSi quantum-confined Stark effect waveguide-coupled electro- absorption modulator with 50GHz bandwidth. Static extinction ratio of 5.2dB, insertion loss of 7.6dB and 60Gb/s NRZ-OOK operation are shown for a 2V swing.
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- 2021
8. Programmable Photonic Circuits using Silicon Photonic MEMS
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Pierre Edinger, Wim Bogaerts, Niels Quack, Marco A. G. Porcel, Kristinn B. Gylfason, Moises Jezzini, Alain Yuji Takabayashi, Giuseppe Talli, Iman Zand, Cristina Lerma Arce, Mehrdad Saei, Cleitus Antony, Gaehun Jo, Hamed Sattari, Saurav Kumar, Frank Niklaus, Peter Verheyen, and Umar Khan
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Optical fiber ,Technology and Engineering ,Silicon ,Computer science ,Physics::Optics ,chemistry.chemical_element ,02 engineering and technology ,01 natural sciences ,7. Clean energy ,Waveguide (optics) ,law.invention ,010309 optics ,Computer Science::Hardware Architecture ,Computer Science::Emerging Technologies ,Hardware_GENERAL ,law ,0103 physical sciences ,Electronics ,ComputingMethodologies_COMPUTERGRAPHICS ,Electronic circuit ,Microelectromechanical systems ,Silicon photonics ,business.industry ,021001 nanoscience & nanotechnology ,chemistry ,Optoelectronics ,Photonics ,0210 nano-technology ,business - Abstract
We present a silicon photonics technology extended with low-power MEMS scalable to large circuits. This enables us to make photonic waveguide meshes that can be reconfigured using electronics and software.
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- 2021
- Full Text
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9. Wafer-level vacuum sealing for packaging of silicon photonic MEMS
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Moises Jezzini, Pierre Edinger, Frank Niklaus, Wim Bogaerts, Gaehun Jo, Peter Verheyen, Kristinn B. Gylfason, Simon J. Bleiker, Hamed Sattari, Niels Quack, Göran Stemme, Alain Yuji Takabayashi, Xiaojing Wang, Reed, Graham T., and Knights, Andrew P.
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mems ,Materials science ,Technology and Engineering ,Silicon ,Physics::Instrumentation and Detectors ,vacuum ,si photonics ,Physics::Optics ,chemistry.chemical_element ,Silicon on insulator ,02 engineering and technology ,Vacuum packing ,7. Clean energy ,01 natural sciences ,010309 optics ,wafer-level packaging ,isipp50g ,0103 physical sciences ,Wafer ,Annan elektroteknik och elektronik ,Si photonics ,Microelectromechanical systems ,Other Electrical Engineering, Electronic Engineering, Information Engineering ,Silicon photonics ,business.industry ,021001 nanoscience & nanotechnology ,Computer Science::Other ,MEMS ,hermetic ,chemistry ,Optoelectronics ,Photonics ,0210 nano-technology ,business ,Wafer-level packaging ,sealing ,iSiPP50G - Abstract
Silicon (Si) photonic micro-electro-mechanical systems (MEMS), with its low-power phase shifters and tunable couplers, is emerging as a promising technology for large-scale reconfigurable photonics with potential applications for example in photonic accelerators for artificial intelligence (AI) workloads. For silicon photonic MEMS devices, hermetic/vacuum packaging is crucial to the performance and longevity, and to protect the photonic devices from contamination. Here, we demonstrate a wafer-level vacuum packaging approach to hermetically seal Si photonic MEMS wafers produced in the iSiPP50G Si photonics foundry platform of IMEC. The packaging approach consists of transfer bonding and sealing the silicon photonic MEMS devices with 30 µm-thick Si caps, which were prefabricated on a 100 mm-diameter silicon-on-insulator (SOI) wafer. The packaging process achieved successful wafer-scale vacuum sealing of various photonic devices. The functionality of photonic MEMS after the hermetic/vacuum packaging was confirmed. Thus, the demonstrated thin Si cap packaging shows the possibility of a novel vacuum sealing method for MEMS integrated in standard Si photonics platforms. QC 20210710 MORPHiC ZeroAMP ULISSES
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- 2021
10. Broadband Compact Single-Pole Double-Throw Silicon Photonic MEMS Switch
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Alain Yuji Takabayashi, Peter Verheyen, Pierre Edinger, Niels Quack, Wim Bogaerts, Hamed Sattari, and Kristinn B. Gylfason
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Silicon ,Technology and Engineering ,photonics ,optical waveguides ,optical switches ,photonic integrated circuits ,Optical switch ,Waveguide (optics) ,optical coupling ,Hardware_INTEGRATEDCIRCUITS ,Optical switches ,optical switch ,Insertion loss ,Annan elektroteknik och elektronik ,Electrical and Electronic Engineering ,Electrodes ,ComputingMethodologies_COMPUTERGRAPHICS ,Physics ,Microelectromechanical systems ,Silicon photonics ,Other Electrical Engineering, Electronic Engineering, Information Engineering ,silicon photonics ,Extinction ratio ,business.industry ,couplings ,Mechanical Engineering ,Photonic integrated circuit ,silicon ,Optical coupling ,electrodes ,Optical waveguides ,microelectromechanical systems ,Couplings ,Optoelectronics ,Photonics ,business - Abstract
Photonic Integrated Circuits (PICs) benefit from the technology advances in the semiconductor industry to incorporate an ever-increasing number of photonic components on a single chip to create large-scale photonic integrated circuits. We here present a broadband, compact and low-loss Silicon Photonic MEMS switch based on a Single-Pole Double-Throw (SPDT) architecture, where curved electrostatic actuators mechanically displace a movable input waveguide to redirect the optical signal on chip efficiently to either of two output waveguides. The photonic switch has been fabricated in an established silicon photonics technology platform with custom MEMS release post-processing. With a compact footprint of $\mathbf 65\times 62\, \boldsymbol μ \mathbf m^\mathbf 2$ , the switch exhibits an extinction ratio exceeding 23 dB over 70 nm optical bandwidth, a low insertion loss and a fast response time below $1 μ \texts$ , meeting the requirements for integration in large-scale reconfigurable Photonic Integrated Circuits. [2020-0391] QC 20210607 MORPHIC
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- 2021
11. Silicon Photonic MEMS Add-Drop Filter
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Wim Bogaerts, Peter Verheyen, Pierre Edinger, Hamed Sattari, Niels Quack, Alain Yuji Takabayashi, and Kristinn B. Gylfason
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Microelectromechanical systems ,low-power ,Technology and Engineering ,Silicon photonics ,Materials science ,business.industry ,0211 other engineering and technologies ,Optical ring resonators ,Port (circuit theory) ,02 engineering and technology ,01 natural sciences ,law.invention ,021109 optoelectronics & photonics ,010309 optics ,Resonator ,Filter (video) ,law ,LOW-POWER ,microring resonator ,0103 physical sciences ,Optoelectronics ,MICRORING RESONATOR ,Photonics ,business ,Optical filter - Abstract
We demonstrate a compact add-drop filter based on a MEMS ring resonator implemented in IMEC's iSiPP50G silicon photonics platform. The device exhibits a port extinction of 20 dB and a port isolation of > 50 dB, upon actuation range of 0 V to 27 V.
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- 2020
12. Micro-transfer-printing for III-V/Si PICs
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Emanuele Pelucchi, Artur Hermans, Guy Lepage, Brian Corbett, Stijn Cuyvers, Geert Morthier, Jeroen Goyvaerts, Gunther Roelkens, Christopher A. Bower, Dries Van Thourhout, Camiel Op de Beeck, Joris Van Campenhout, Jing Zhang, Bahawal Haq, Antonio Jose Trindade, Agnieszka Gocalinska, Sulakshna Kumari, Roel Baets, Peter Verheyen, Grigorij Muliuk, and Bart Kuyken
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Materials science ,Silicon photonics ,Technology and Engineering ,Silicon ,Silicon photonic integrated circuits ,business.industry ,Si PICs ,chemistry.chemical_element ,III-V/Si PIC ,Integrated circuit ,01 natural sciences ,µTP ,law.invention ,010309 optics ,III-V opto-electronic components ,chemistry ,law ,Transfer printing ,0103 physical sciences ,Optoelectronics ,Photonics ,010306 general physics ,business ,Micro-transfer-printing - Abstract
Micro-transfer-printing (µTP) enables the intimate integration of a variety of III-V opto-electronic components on silicon photonic integrated circuits (Si PICs). It allows for the scalable manufacturing of complex III-V/Si PICs at low cost.
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- 2020
13. Analysis of dark current in Ge-on-Si photodiodes at cryogenic temperatures
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S. Balakrishnan, Andrea Pizzone, Peter Verheyen, Joris Van Campenhout, S. A. Srinivasan, and Guy Lepage
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Waveguide photodiode ,Silicon photonics ,Materials science ,business.industry ,Activation energy ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,Photodiode ,law.invention ,law ,Optoelectronics ,business ,Quantum tunnelling ,Dark current ,Voltage - Abstract
The dark current behavior of three different Ge waveguide photodiode designs integrated in a silicon photonics platform is investigated from 34 to 334 K. The activation energy is extracted to understand the relative contribution of Shockley-Read-Hall and trap-assisted tunneling at different temperatures and voltage biases.
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- 2020
14. O-Band GeSi Quantum-Confined Stark Effect Electro-Absorption Modulator Integrated in a 220nm Silicon Photonics Platform
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S. Balakrishnan, Peter Verheyen, Hugo Bender, Roger Loo, Joris Van Campenhout, S. A. Srinivasan, Patrick Ong, Clement Porret, Paola Favia, and Marianna Pantouvaki
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Materials science ,Silicon photonics ,Extinction ratio ,business.industry ,Quantum-confined Stark effect ,Optical interconnect ,Physics::Optics ,symbols.namesake ,Stark effect ,Electro-absorption modulator ,symbols ,Optoelectronics ,Photonics ,business ,Quantum well - Abstract
We report on a waveguide-coupled quantum-confined Stark effect (QCSE) electro-absorption modulator integrated in a 220nm Si photonics platform and operating in 1335-1365nm wavelength range. The device is based on a strain -balanced GeSi quantum well / barrier stack grown on an ultra-thin strain-relaxed buffer. The stack is only 450nm thick, facilitating optical coupling to sub-micron Si waveguides. An extinction ratio up to 8dB is achieved in a $40\mu \mathrm{m}$ long device for a 1 Vpp drive voltage, demonstrating the potential of this modulator for low-power optical interconnect applications.
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- 2020
15. Building Large-Scale Programmable Photonic Circuits Using Silicon Photonic MEMS
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Gaehun Jo, Umar Khan, Alain Yuji Takabayashi, Xiaojing Wang, Xiangfeng Chen, Antonio Ribeiro, Marco A. G. Porcel, Moises Jezzini, Pierre Edinger, Iman Zand, Wim Bogaerts, Hamed Sattari, Saurav Kumar, Niels Quack, Peter Verheyen, Giuseppe Talli, Kristinn B. Gylfason, and Frank Niklaus
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Technology and Engineering ,Materials science ,Physics::Instrumentation and Detectors ,Physics::Optics ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,Quantum key distribution ,7. Clean energy ,01 natural sciences ,010309 optics ,Computer Science::Hardware Architecture ,020210 optoelectronics & photonics ,Radio over fiber ,Wavelength-division multiplexing ,0103 physical sciences ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Electronic circuit ,Microelectromechanical systems ,Silicon photonics ,business.industry ,Chip ,Computer Science::Other ,Physics::Accelerator Physics ,Optoelectronics ,Photonics ,business ,Hardware_LOGICDESIGN - Abstract
Programmable photonic circuits electronically reconfigure the flow of light on a chip. This requires hundreds or thousands of phase shifters and tunable couplers. Silicon photonic MEMS offer both high integration density and low power consumption.
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- 2020
16. Compact low loss MEMS phase shifters for scalable field-programmable silicon photonics
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Wim Bogaerts, Pierre Edinger, Alain Yuji Takabayashi, Hamed Sattari, Niels Quack, Peter Verheyen, Carlos Errando-Herranz, and Kristinn B. Gylfason
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Microelectromechanical systems ,Silicon photonics ,Materials science ,Technology and Engineering ,Silicon ,business.industry ,Phase (waves) ,Linearity ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,010309 optics ,chemistry ,Physics and Astronomy ,0103 physical sciences ,Optoelectronics ,Photonics ,0210 nano-technology ,business ,Actuator ,Linear phase - Abstract
MEMS offer low power tunability to silicon photonics. However, reported phase shifters lack in range, IL, or linearity. We show pi linear phase shift in compact, 0.2 dB-IL MEMS devices, and demonstrate trade-offs for scalability. (C) 2020 The Author(s)
- Published
- 2020
17. A <tex-math notation='LaTeX'>$16\times16$ </tex-math> Non-Volatile Silicon Photonic Switch Circuit
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Dries Van Thourhout, Mikael Detalle, Kumar Saurav, Cristina Lerma Arce, Jan Watte, Guy Lepage, Peter Verheyen, and Herbert D'heer
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Materials science ,Silicon photonics ,Wavelength range ,business.industry ,02 engineering and technology ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Crosstalk ,Wavelength ,020210 optoelectronics & photonics ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Electrical and Electronic Engineering ,Adiabatic process ,business - Abstract
A 16×16 silicon photonic switch circuit suitable for non-volatile operations has been realized. The switch circuit consists of dilated switch elements with liquid-controlled adiabatic waveguide couplers. The switch with a cross-bar architecture is compatible with a non-volatile electrowetting-on-dielectric system for optical actuation. The measured fiber-to-fiber loss is less than 18.9 dB over the wavelength range from 1500 to 1630 nm. At a wavelength of 1550 nm, the loss is between 8.5 and 17.4 dB depending on the length of the light path. The crosstalk of the switch is better than -50 dB over the wavelength range from 1500 to 1630 nm.
- Published
- 2018
18. High Extinction Ratio Hybrid Graphene-Silicon Photonic Crystal Switch
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Gunther Roelkens, Dries Van Thourhout, Brad Snyder, Weiqiang Xie, Peter De Heyn, Leili Abdollahi Shiramin, and Peter Verheyen
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Silicon photonics ,Materials science ,Extinction ratio ,Silicon ,Graphene ,business.industry ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Optical switch ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,chemistry ,law ,Transfer printing ,0103 physical sciences ,Optoelectronics ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Immersion lithography ,Photonic crystal - Abstract
In this letter, we demonstrate a compact optical switch realized by integrating a graphene layer with a silicon photonic crystal cavity fabricated using deep UV immersion lithography and a novel transfer printing approach. A 17-dB extinction ratio and 0.75-nm shift in the cavity resonance are measured for a swing voltage of only 1.2 V. The graphene layer is limited to $\mu $ m in size. The experimental results are linked to a theoretical model and used to predict possible improvements to the design.
- Published
- 2018
19. Active Components for 50 Gb/s NRZ-OOK Optical Interconnects in a Silicon Photonics Platform
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S. Balakrishnan, Philippe Absil, S. A. Srinivasan, Marianna Pantouvaki, J. Van Campenhout, Peter Verheyen, Guy Lepage, J. De Coster, Hongtao Chen, N. Golshani, Y. Ban, and P. De Heyn
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Materials science ,Silicon photonics ,business.industry ,Hybrid silicon laser ,Bandwidth (signal processing) ,Active components ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,Atomic and Molecular Physics, and Optics ,020210 optoelectronics & photonics ,Hardware_GENERAL ,Optical receivers ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Photonics ,business ,Voltage ,Cmos compatible - Abstract
We present active components developed in imec's silicon photonics platform that enable 50-Gb/s non-return-to-zero operation using CMOS compatible voltages.
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- 2017
20. 100-Gbps RZ Data Reception in 67-GHz Si-Contacted Germanium Waveguide p-i-n Photodetectors
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J. De Coster, P. De Heyn, S. Balakrishnan, J. Van Campenhout, Michael Galili, Hongtao Chen, Leif Katsuo Oxenløwe, Peter Verheyen, Guy Lepage, Philippe Absil, and Gunther Roelkens
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Silicon ,Materials science ,PHOTODIODE ,Optical communication ,chemistry.chemical_element ,Photodetector ,Germanium ,02 engineering and technology ,PIN photodiodes ,optical communications ,01 natural sciences ,Waveguide (optics) ,law.invention ,010309 optics ,Responsivity ,Bandwidth ,020210 optoelectronics & photonics ,Optics ,law ,Radio frequency ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,integrated optoelectronics ,Silicon photonics ,business.industry ,Atomic and Molecular Physics, and Optics ,Photodiode ,Optical waveguides ,chemistry ,Optical pulses ,photodetectors ,Optoelectronics ,business - Abstract
We demonstrate 100-Gbps silicon-contacted germanium waveguide p-i-n photodetectors integrated on imec's silicon photonics platform. The performance of 14 and 20 μm long devices is compared. The responsivity of the devices is 0.74 and 0.92 A/W at 1550 nm, respectively.
- Published
- 2017
21. III-V-on-silicon widely tunable laser realized using micro-transfer-printing
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Brian Corbett, Peter Verheyen, Jing Zhang, Agnieszka Gocalinkska, Gunther Roelkens, Emanuele Pelucchi, Joris Van Campenhout, and Guy Lepage
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Materials science ,Silicon ,chemistry ,business.industry ,Transfer printing ,Optoelectronics ,chemistry.chemical_element ,business ,Tunable laser - Published
- 2019
22. TSV-assisted Hybrid FinFET CMOS - Silicon Photonics Technology for High Density Optical I/O
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Davide Guermandi, S. Van Huylenbroeck, Peter Verheyen, P. De Heyn, Ashwyn Srinivasan, Caroline Demeurisse, Julien Bertheau, Andy Miller, M. Pantouvaki, S. Lardenois, P. Nolmans, Michal Rakowski, Kenneth June Rebibis, S. Balakrishnan, Y. Ban, Xiao Sun, Philippe Absil, Nicolas Pantano, Junwen He, Pieter Bex, Alain Phommahaxay, J. De Coster, J. Van Campenhout, L. Bogaerts, and Dimitrios Velenis
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Materials science ,Silicon photonics ,CMOS ,business.industry ,Optoelectronics ,High density ,business - Published
- 2019
23. Low-Voltage 60Gb/s NRZ and 100Gb/s PAM4 O-Band Silicon Ring Modulator
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Peter Verheyen, M. Pantouvaki, S. Lardenois, Michael Vanhoecke, Johan Bauwelinck, Y. Ban, J. Van Campenhout, and Jochem Verbist
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Materials science ,Silicon photonics ,Silicon ,business.industry ,Bandwidth (signal processing) ,Optical interconnect ,chemistry.chemical_element ,020206 networking & telecommunications ,02 engineering and technology ,020210 optoelectronics & photonics ,Ring modulation ,chemistry ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,business ,Phase modulation ,Phase shift module ,Low voltage - Abstract
We demonstrate 60Gb/s NRZ and 100Gb/s PAM4 data modulation with an O-band silicon ring modulator with only 1.6V pp and 2.5V pp drive swing respectively, leveraging the large modulation efficiency (55pm/V) and electro-optical bandwidth (35GHz) realized by an optimized vertical PN diode phase shifter design.
- Published
- 2019
- Full Text
- View/download PDF
24. V-Groove Assisted Passive Assembly of Single-Mode Fibers to Ultra-Broadband Polarization-Insensitive Edge Couplers for Silicon Photonics
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J. Van Campenhout, Peter Verheyen, O. Yilmaz, Bradley Snyder, J. De Coster, M. Pantouvaki, Guy Lepage, and Junwen He
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Silicon photonics ,Materials science ,business.industry ,Broadband ,Single-mode optical fiber ,Optoelectronics ,business ,Polarization (waves) - Published
- 2019
25. 1 V bias 67GHz bandwidth Si-contacted germanium waveguide p-i-n photodetector for optical links at 56 Gbps and beyond
- Author
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L. Shen, J. Van Campenhout, S. Balakrishnan, Weiming Yao, Hongtao Chen, J. De Coster, Peter Verheyen, P. De Heyn, Gunther Roelkens, Philippe Absil, Guy Lepage, and Photonic Integration
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Technology and Engineering ,Materials science ,PHOTODIODE ,chemistry.chemical_element ,Photodetector ,Germanium ,02 engineering and technology ,01 natural sciences ,Capacitance ,law.invention ,010309 optics ,Responsivity ,020210 optoelectronics & photonics ,Optics ,law ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,SILICON ,GE ,business.industry ,Bandwidth (signal processing) ,Atomic and Molecular Physics, and Optics ,Photodiode ,Wavelength ,chemistry ,Optoelectronics ,business ,Dark current - Abstract
We demonstrate a 67 GHz bandwidth silicon-contacted germanium waveguide p-i-n photodetector operating at −1 V with 6.8 fF capacitance. The dark current is below 4 nA. The responsivity is 0.74 A/W at 1550 nm and 0.93 A/W at 1310 nm wavelength. 56 Gbps on-off-keying data reception is demonstrated with clear open eye diagrams in both the C-band and O-band.
- Published
- 2016
26. Silicon-based Photonic Integrated Circuits for the Mid-infrared
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W. Vanherle, Jordi Soler Penades, Roger Loo, Peter Verheyen, Sanja Radosavljevic, Guy Lepage, Yosuke Shimura, Tinneke Van Opstal, Aditya Malik, Joris Van Campenhout, Goran Z. Mashanovich, Milos Nedeljkovic, Muhammad Muneeb, and Gunther Roelkens
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Technology and Engineering ,Materials science ,Silicon ,Physics::Optics ,chemistry.chemical_element ,Silicon on insulator ,Germanium ,02 engineering and technology ,law.invention ,020210 optoelectronics & photonics ,Optics ,law ,0202 electrical engineering, electronic engineering, information engineering ,Engineering(all) ,Electronic circuit ,Thermo-Optic phase shifters ,Spectrometer ,business.industry ,Photonic integrated circuit ,General Medicine ,Photonic Integrated Circuits ,Arrayed Waveguide Gratings ,Wavelength ,Planar Concave Gratings ,chemistry ,Optoelectronics ,business ,Dielectric Waveguides ,Waveguide - Abstract
Silicon-based photonic integrated circuits (PICs) operating in the mid-infrared wavelength range are presented. Firstly, it is shown that the operation of the SOI-based waveguide circuits can be pushed beyond the telecom window till a wavelength of 4 μm. Ge-on-Si based PICs are demonstrated for operation beyond 4 μm wavelength. Low-loss waveguides and integrated spectrometers are reported for both the waveguide platforms. We also present our results on efficient thermo-optic phase shifters for germanium waveguide circuits.
- Published
- 2016
27. III-V/Si Photonic Integrated Circuits for the Mid-Infrared
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Joris Van Campenhout, Markus-Christian Amann, Nuria Teigell Beneitez, Xiaoning Jia, Bahawal Haq, Augustinas Vizbaras, Stephan Sprengel, Muhammad Muneeb, Peter Verheyen, Sanja Radosavljevic, Roel Baets, Fabio Pavanello, Guy Lepage, Ruijun Wang, Kristijonas Vizbaras, Gunther Roelkens, Anton Vasiliev, Ieva Simonyte, and Gerhard Boehm
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Materials science ,Spectrometer ,business.industry ,Photonic integrated circuit ,Silicon on insulator ,Laser ,law.invention ,Semiconductor laser theory ,Biophotonics ,Semiconductor ,law ,Optoelectronics ,business ,Optical filter - Abstract
We review our work on SOI and Ge-on-SOI PICs for the mid-infrared. We demonstrate the integration of III-V semiconductors on the SOI platform for 2–4 μm wavelength range integrated lasers and spectrometers, as well as tunable filters implemented on the Ge-on-SOI platform beyond 4μm.
- Published
- 2018
28. Hybrid 14nm FinFET - Silicon Photonics Technology for Low-Power Tb/s/mm2 Optical I/O
- Author
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Yoojin Ban, Xiao Sun, Kenneth June Rebibis, L. Bogaerts, Michal Rakowski, Nicolas Pantano, Philippe Absil, Dimitrios Velenis, J. Van Campenhout, S. Lardenois, S. Balakrishnan, J. De Coster, S. Van Huylenbroeck, Caroline Demeurisse, Pieter Bex, Andy Miller, Bradley Snyder, M. Pantouvaki, P. Nolmans, P. De Heyn, Fumihiro Inoue, Ashwyn Srinivasan, and Peter Verheyen
- Subjects
Optical fiber ,Silicon photonics ,Materials science ,business.industry ,Amplifier ,Single-mode optical fiber ,02 engineering and technology ,Multiplexing ,law.invention ,Photodiode ,020210 optoelectronics & photonics ,law ,Wavelength-division multiplexing ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Photonics ,business - Abstract
We demonstrate a microbump flip-chip integrated 14nm-FinFET CMOS-Silicon Photonics (SiPh) technology platform enabling ultra-low power Optical I/O transceivers with 1.6Tb/s/mm2 bandwidth density. The transmitter combines a differential FinFET driver with a Si ring modulator, enabling 40Gb/s NRZ optical modulation at 154fJ/bit dynamic power consumption in a 0.015mm2 footprint. The receiver combines a FinFET trans-impedance amplifier (TIA) with a Ge photodiode, enabling 40Gb/s NRZ photodetection with −10.3dBm sensitivity at 75fJ/bit power consumption, in a 0.01mm2 footprint. High-quality data transmission and reception is demonstrated in a loop-back experiment at 1330nm wavelength over standard single mode fiber (SMF) with 2dB link margin. Finally, a 4×40Gb/s, 0.1mm2 wavelength-division multiplexing (WDM) transmitter with integrated thermal control is demonstrated, enabling Optical I/O scaling substantially beyond 100Gb/s per fiber.
- Published
- 2018
29. Broadband, Polarization-Insensitive Lensed Edge Couplers for Silicon Photonics
- Author
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Peter Verheyen, S. Balakrishnan, Guy Lepage, Philippe Absil, Bradley Snyder, Marianna Pantouvaki, and Joris Van Campenhout
- Subjects
Silicon photonics ,Materials science ,Silicon ,business.industry ,chemistry.chemical_element ,Silicon on insulator ,02 engineering and technology ,Polarization (waves) ,law.invention ,Micrometre ,Lens (optics) ,Mode field diameter ,020210 optoelectronics & photonics ,chemistry ,law ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Photonics ,business - Abstract
We have designed, fabricated and tested edge couplers for silicon photonics with etched lenses targeting industry-standard SMF-28 fibers as well as future alignment and dust-tolerant expanded-beam connectors. These edge couplers are based on a Si inverse taper combined with a SiON ridge waveguide and etched lens fabricated on a silicon-on-insulator (SOI) platform. The lens structures were designed for coupling to SMF-28 fibers with a 1/e mode field diameter (MFD) of 10.4 micrometers in the telecommunications C-band. Alternate lens designs targeted expanded beams with 30 micrometer horizontal MFD. The measured SMF-28 lensed couplers exhibited a 1 dB bandwidth exceeding 150 nanometers, polarization dependent loss (PDL) of less than 1 dB and coupling efficiency better than -4.8 dB across the S-, C- and L-bands with only horizontal beam expansion.
- Published
- 2018
30. Widely tunable 23 μm III-V-on-silicon Vernier lasers for broadband spectroscopic sensing
- Author
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Markus-Christian Amann, Ruijun Wang, Gunther Roelkens, Anton Vasiliev, Stephan Sprengel, Gerhard Boehm, Roel Baets, Peter Verheyen, Guy Lepage, and Joris Van Campenhout
- Subjects
Materials science ,Technology and Engineering ,Absorption spectroscopy ,02 engineering and technology ,Integrated circuit ,01 natural sciences ,law.invention ,Semiconductor laser theory ,010309 optics ,ABSORPTION-SPECTROSCOPY ,WAVE-GUIDES ,020210 optoelectronics & photonics ,law ,Atomic and Molecular Physics ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Electronic ,GAS-DETECTION ,Optical and Magnetic Materials ,DIODE-LASER ,QUANTUM CASCADE LASERS ,Silicon photonics ,business.industry ,Vernier scale ,CHIP ,Laser ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,ROOM-TEMPERATURE ,Physics and Astronomy ,Optoelectronics ,HITRAN ,and Optics ,business ,Tunable laser - Abstract
Heterogeneously integrating III-V materials on silicon photonic integrated circuits has emerged as a promising approach to make advanced laser sources for optical communication and sensing applications. Tunable semiconductor lasers operating in the 2-2.5 mu m range are of great interest for industrial and medical applications since many gases (e.g., CO2, CO, CH4) and biomolecules (such as blood glucose) have strong absorption features in this wavelength region. The development of integrated tunable laser sources in this wavelength range enables low-cost and miniature spectroscopic sensors. Here we report heterogeneously integrated widely tunable III-V-on-silicon Vernier lasers using two silicon microring resonators as the wavelength tuning components. The laser has a wavelength tuning range of more than 40 nm near 2.35 mu m. By combining two lasers with different distributed Bragg reflectors, a tuning range of more than 70 nm is achieved. Over the whole tuning range, the side-mode suppression ratio is higher than 35 dB. As a proof-of-principle, this III-V-on-silicon Vernier laser is used to measure the absorption lines of CO. The measurement results match very well with the high-resolution transmission molecular absorption (HITRAN) database and indicate that this laser is suitable for broadband spectroscopy. (C) 2018 Chinese Laser Press
- Published
- 2018
31. Silicon Photonics for 56G NRZ Optical Interconnects
- Author
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Andy Miller, S. Balakrishnan, Sofie Janssen, S. Lardenois, A. Lesniewska, Guy Lepage, Kristof Croes, Joris Van Campenhout, Brad Snyder, Philippe Absil, Ashwyn Srinivasan, Yoojin Ban, Peter Verheyen, Marianna Pantouvaki, Peter De Heyn, Negin Golshani, and Jeroen De Coster
- Subjects
020210 optoelectronics & photonics ,Materials science ,Silicon photonics ,business.industry ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Photodetector ,02 engineering and technology ,business - Abstract
We discuss recent progress in the performance of modulators and photodetectors co-integrated in a silicon photonics platform, and capable of operation in the O-band or C-band at 56Gb/s single-lane NRZ data rates and beyond.
- Published
- 2018
32. Packaging and Assembly Challenges for 50G Silicon Photonics Interposers
- Author
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Bradley Snyder, S. Balakrishnan, Nivesh Mangal, L. Bogaerts, Peter Verheyen, Philippe Absil, Michal Rakowski, Nicolas Pantano, Joris Van Campenhout, Andy Miller, Marianna Pantouvaki, Peter De Heyn, Guy Lepage, and Xiao Sun
- Subjects
Materials science ,Silicon photonics ,business.industry ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,020210 optoelectronics & photonics ,CMOS ,Hardware_GENERAL ,Broadband ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Coupling efficiency ,Interposer ,Optoelectronics ,Fiber ,business ,Polymer waveguide - Abstract
We address the challenges in realizing low-loss, broadband optical interfaces for high-density fiber or polymer waveguides along with through-silicon via interconnects in a 50 GHz silicon photonics interposer platform suitable for 2.5D/3D packaging with advanced CMOS logic.
- Published
- 2018
33. Ultra-broadband, polarization-insensitive SMF-28 fiber edge couplers for silicon photonics
- Author
-
Guy Lepage, Joris Van Campenhout, Peter Verheyen, S. Balakrishnan, Bradley Snyder, Peter De Heyn, and Philippe Absil
- Subjects
Coupling ,Silicon photonics ,Materials science ,Silicon ,business.industry ,Bandwidth (signal processing) ,chemistry.chemical_element ,Silicon on insulator ,02 engineering and technology ,Polarization (waves) ,020210 optoelectronics & photonics ,chemistry ,Broadband ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,business ,Leakage (electronics) - Abstract
We have designed, fabricated and tested edge couplers for silicon photonics targeting industry-standard SMF-28 fibers. These edge couplers are based on a SiN inverse taper fabricated on a silicon-on-insulator (SOI) platform combined with an etch-based substrate removal process that prevents leakage of the expanded mode to the underlying silicon substrate. The measured couplers exhibited a 0.5 dB bandwidth exceeding 100 nm, polarization dependent loss (PDL) of less than 0.5 dB and coupling efficiency of approximately −3 dB in O-band. Similarly, a 1 dB bandwidth exceeding 100 nm, PDL less than 1 dB and coupling efficiencies of −3 dB and better than −4 dB for TE and TM modes respectively were demonstrated across the C- and L-bands.
- Published
- 2017
34. 25-Gb/s 1310-nm Optical Receiver Based on a Sub-5-V Waveguide-Coupled Germanium Avalanche Photodiode
- Author
-
Jochem Verbist, Bart Moeneclaey, Gunther Roelkens, J. Van Campenhout, Peter Verheyen, Johan Bauwelinck, Hongtao Chen, Philippe Absil, J. De Coster, Guy Lepage, Xin Yin, and P. De Heyn
- Subjects
lcsh:Applied optics. Photonics ,Materials science ,Technology and Engineering ,APDS ,optical interconnects ,Optical interconnects ,Silicon photonics ,Photodetector ,chemistry.chemical_element ,Germanium ,Waveguide (optics) ,law.invention ,NOISE ,Avalanche photodetectors (APDs) ,Optics ,law ,Electric field ,lcsh:QC350-467 ,Electrical and Electronic Engineering ,silicon photonics ,Avalanche photodetectors ,business.industry ,Bandwidth (signal processing) ,lcsh:TA1501-1820 ,Avalanche photodiode ,Atomic and Molecular Physics, and Optics ,chemistry ,Optoelectronics ,GAIN ,business ,PHOTODETECTOR ,lcsh:Optics. Light - Abstract
We demonstrate low-voltage waveguide-coupled germanium avalanche photodetectors (APDs) with a (wafer-scale mean) gain $\times$ bandwidth product of 140 GHz at $-$ 5 V by utilizing a 185-nm-thick Ge layer. An optical receiver based on such an APD operating up to 25 Gb/s is demonstrated.
- Published
- 2015
35. Narrow-linewidth short-pulse III-V-on-silicon mode-locked lasers based on a linear and ring cavity geometry
- Author
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Peter Verheyen, Guy Lepage, G-H Duan, Xin Fu, Erwin Bente, Sylwester Latkowski, Francois Lelarge, J Marien, Sarah Uvin, J. Van Campenhout, M. Tassaert, Shahram Keyvaninia, Gunther Roelkens, L. Thomassen, and Photonic Integration
- Subjects
Materials science ,Technology and Engineering ,Silicon ,INSULATOR ,business.industry ,Photonic integrated circuit ,chemistry.chemical_element ,Physics::Optics ,Insulator (electricity) ,Geometry ,Laser ,Atomic and Molecular Physics, and Optics ,law.invention ,Laser linewidth ,Optics ,Mode-locking ,chemistry ,GRATING COUPLERS ,law ,Phase noise ,Optoelectronics ,Physics::Accelerator Physics ,Photonics ,business ,PHOTONICS - Abstract
Picosecond-pulse III-V-on-silicon mode-locked lasers based on linear and ring extended cavity geometries are presented. In passive mode-locked operation a 12 kHz -3dB linewidth of the fundamental RF tone at 4.7 GHz is obtained for the linear cavity geometry and 16 kHz for the ring cavity geometry. Stabilization of the repetition rate of these devices using hybrid mode-locking is also demonstrated.
- Published
- 2015
36. Electrically tunable absorption in graphene-integrated silicon photonic crystal cavity
- Author
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Leili Abdollahi Shiramin, Peter De Heyn, Gunther Roelkens, Dries Van Thourhout, Weiqiang Xie, Brad Snyder, and Peter Verheyen
- Subjects
Materials science ,Silicon photonics ,Extinction ratio ,business.industry ,Graphene ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,law.invention ,Crystal ,Erbium ,020210 optoelectronics & photonics ,Optical modulator ,chemistry ,law ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Photonics ,0210 nano-technology ,business ,Absorption (electromagnetic radiation) - Abstract
We demonstrate 17 dB extinction ratio in an electrically gated graphene-integrated silicon photonic crystal cavity by applying −1.2 V gate voltage. The shift of resonance wavelength for the same voltage range is 0.75 nm. The size of the graphene layer is only 5 μm2.
- Published
- 2017
37. Ultra-Dense 16x56Gb/s NRZ GeSi EAM-PD Arrays Coupled to Multicore Fiber for Short-Reach 896Gb/s Optical Links
- Author
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S. A. Srinivasan, J. Van Campenhout, Victor I. Kopp, P. De Heyn, Guy Lepage, Daniel Neugroschl, Peter Verheyen, Philippe Absil, Jonathan Singer, Mitchell Wlodawski, Bradley Snyder, S. Balakrishnan, M. Pantouvaki, and Jongchul Park
- Subjects
Dense array ,Ultra dense ,Materials science ,Silicon ,business.industry ,Bandwidth (signal processing) ,Photodetector ,chemistry.chemical_element ,02 engineering and technology ,Multicore fiber ,Multiplexing ,020210 optoelectronics & photonics ,chemistry ,Hardware_GENERAL ,0202 electrical engineering, electronic engineering, information engineering ,Electronic engineering ,Optoelectronics ,Transceiver ,business - Abstract
A 16-channel spatial-division multiplexed transceiver is demonstrated using a multicore fiber coupled to a dense array of co-integrated 56Gb/s GeSi electro-absorption modulators and photodetectors, realizing 896Gb/s aggregate bi-directional bandwidth in 1.47mm2 silicon footprint.
- Published
- 2017
38. Reliable 50Gb/s silicon photonics platform for next-generation data center optical interconnects
- Author
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Roger Loo, V. Simons, A. Lesniewska, K. Croes, Guy Lepage, Hongtao Chen, Mikael Detalle, S. Balakrishnan, Philippe Absil, S. Lardenois, Yoojin Ban, J. Van Campenhout, Bradley Snyder, P. De Heyn, Andy Miller, M. Pantouvaki, W. Vanherle, S. A. Srinivasan, Ferenc Fodor, R. Boufadil, N. Golshani, Peter Verheyen, and J. De Coster
- Subjects
Technology and Engineering ,Silicon photonics ,Silicon ,business.industry ,Computer science ,Detector ,chemistry.chemical_element ,02 engineering and technology ,7. Clean energy ,020210 optoelectronics & photonics ,Reliability (semiconductor) ,Physics and Astronomy ,chemistry ,Modulation ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Data center ,Transceiver ,Photonics ,business - Abstract
The next generations of data centers require a scalable optical transceiver technology. In this paper we present a silicon photonics platform supporting single-channel data rates of 50Gb/s and above. Advanced process options include 50GHz GeSi electro-absorption modulators, high efficiency thermo-optic phase shifters with P-pi
- Published
- 2017
- Full Text
- View/download PDF
39. Compact Thermally Tunable Silicon Racetrack Modulators Based on an Asymmetric Waveguide
- Author
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Sarvagya Dwivedi, Hui Yu, J. Van Campenhout, M. Pantouvaki, Wim Bogaerts, Roel Baets, Peter Verheyen, Philippe Absil, and Guy Lepage
- Subjects
Technology and Engineering ,Materials science ,Silicon photonics ,Extinction ratio ,business.industry ,optical resonators ,Bend radius ,Physics::Optics ,MICRORING MODULATOR ,Optical modulation amplitude ,thermo-optical effects ,Waveguide (optics) ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Optics ,Optical modulator ,integrated optics ,Modulation ,Electro-optic modulators ,Optoelectronics ,HIGH-SPEED ,Electrical and Electronic Engineering ,business ,Diode - Abstract
A compact wavelength-tunable 10-Gb/s silicon racetrack modulator with integrated thermo-optic heater is demonstrated by using a waveguide with an asymmetric cross section, combining the compact footprint of microdisk modulators with the design simplicity of regular racetrack or ring modulators. The outer perimeter of the asymmetric racetrack modulator is fully etched to maximize optical confinement, and the inner waveguide edge is shallowly etched to maintain an electrically conductive path to the embedded p-n diode and to control the propagation of the asymmetric optical mode and its coupling to the bus waveguide. The resistive heating elements based on highly doped Si strips are implemented at the outer edge of the modulator for thermo-optic control. The asymmetric modulators can be fabricated along with Si wire waveguides and shallowly etched fiber-grating couplers using a simple process flow involving just two Si-patterning steps. Devices with a bending radius of 10 mu m and a novel "T"-shaped p-n diode layout have been fabricated, and exhibit electro-optic modulation and heater efficiencies of 28 pm/V and 42 pm/mW, respectively. At 10 Gb/s, a stable extinction ratio of 10 dB is demonstrated from a 2V(pp) drive swing, which can be maintained over a wavelength range of 4.6 nm by thermally tuning the modulator. This is equivalent with a temperature variation of about 62 degrees C.
- Published
- 2013
40. Bidirectional NPN ESD protection in silicon photonics technology
- Author
-
Mirko Scholz, Guido Groeseneken, Joris Van Campenhout, Peter Verheyen, Aaron Thean, Peter De Heyn, Roman Boschke, Shih-Hung Chen, Geert Hellings, and Dimitri Linten
- Subjects
010302 applied physics ,Silicon photonics ,Materials science ,business.industry ,Hybrid silicon laser ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Electrical engineering ,020206 networking & telecommunications ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,01 natural sciences ,Signal ,Optical modulator ,CMOS ,Optical transistor ,0103 physical sciences ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Interposer ,Optoelectronics ,Photonics ,business - Abstract
Silicon photonics interposers enable low power, high bandwidth signal transfer between CMOS chips. Optical wave guides transfer the optical signal that carries the information. Optical modulator and detectors realize the optical to electrical signal transfer and vice versa. These components could be facing ESD stress during assembly. This work presents an in-depth study the self-protecting capabilities of these components and provides an ESD protection solution to increase the ESD robustness.
- Published
- 2016
41. −1 V Bias 56 Gbps Germanium Waveguide p-i-n Photodetector with Silicon Contacts
- Author
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Peter Verheyen, J. Van Campenhout, Guy Lepage, Gunther Roelkens, P. De Heyn, Hongtao Chen, J. De Coster, and Philippe Absil
- Subjects
Materials science ,Silicon photonics ,Silicon ,business.industry ,Photodetector ,chemistry.chemical_element ,Germanium ,02 engineering and technology ,01 natural sciences ,Waveguide (optics) ,Photodiode ,law.invention ,010309 optics ,Responsivity ,020210 optoelectronics & photonics ,Optics ,chemistry ,law ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,business ,Dark current - Abstract
We demonstrate a silicon-contact-only 56 Gbps germanium waveguide photodetector operating at −1 V. The dark current is below 4 nA and the responsivity is 0.74 A/W at 1550 nm and 0.93 A/W at 1310 nm.
- Published
- 2016
42. Integrated optical frequency shifter on a silicon platform
- Author
-
Philippe Absil, S. Balakrishnan, Guy Lepage, Thijs Spuesens, Yanlu Li, Roel Baets, and Peter Verheyen
- Subjects
Materials science ,Silicon photonics ,Technology and Engineering ,Sideband ,Silicon ,business.industry ,Orthogonal frequency-division multiplexing ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Line (electrical engineering) ,010309 optics ,CMOS ,chemistry ,Optical frequencies ,0103 physical sciences ,Optoelectronics ,0210 nano-technology ,business ,Telecommunications - Abstract
An integrated optical frequency shifter on a standard silicon photonics platform completely fabricated in a CMOS pilot line and showing MHz frequency shifts with a sideband suppression ratio up to 36 dB is demonstrated.
- Published
- 2016
43. 50Gb/s Silicon Photonics Platform for Short-Reach Optical Interconnects
- Author
-
Guy Lepage, J. De Coster, Michal Rakowski, Peter Verheyen, Philippe Absil, P. De Heyn, S. A. Srinivasan, J. Van Campenhout, Bradley Snyder, Hongtao Chen, and Marianna Pantouvaki
- Subjects
Silicon photonics ,Materials science ,business.industry ,Photodetector ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,Optical performance monitoring ,020210 optoelectronics & photonics ,CMOS ,Hardware_GENERAL ,Modulation ,visual_art ,Wavelength-division multiplexing ,Electronic component ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,visual_art.visual_art_medium ,Optoelectronics ,Photonics ,business - Abstract
We review a silicon photonics platform that integrates low-loss passive components with high-speed modulators and photodetectors operating at 50Gb/s from CMOS compatible voltages.
- Published
- 2016
44. Dark current analysis in high-speed germanium p-i-n waveguide photodetectors
- Author
-
P. De Heyn, Hongtao Chen, Peter Verheyen, Gunther Roelkens, Philippe Absil, J. De Coster, J. Van Campenhout, Guy Lepage, and S. Balakrishnan
- Subjects
Materials science ,Technology and Engineering ,Silicon ,Physics::Instrumentation and Detectors ,General Physics and Astronomy ,chemistry.chemical_element ,Photodetector ,Germanium ,02 engineering and technology ,01 natural sciences ,law.invention ,LEAKAGE ,GE PFET JUNCTIONS ,law ,DEPENDENCE ,0103 physical sciences ,SI ,TEMPERATURE ,Quantum tunnelling ,Leakage (electronics) ,010302 applied physics ,business.industry ,PLATFORM ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,Photodiode ,MODEL ,chemistry ,HIGH-PERFORMANCE ,Optoelectronics ,0210 nano-technology ,business ,Voltage ,Dark current - Abstract
We present a dark current analysis in waveguide-coupled germanium vertical p-i-n photodetectors. In the analysis, a surface leakage current and a bulk leakage current were separated, and their activation energies were extracted. The surface leakage current originating from the minority carrier generation on the Ge layer sidewalls, governed by the Shockley-Read-Hall process and enhanced by the trap-assisted-tunneling process, was identified as the main contribution to the dark current of vertical p-i-n photodiodes at room temperature. The behavior of this surface leakage current as a function of temperature and reverse bias voltage is well reproduced by using the Hurckx model for trap-assisted-tunneling. Published by AIP Publishing.
- Published
- 2016
45. 56 Gb/s Germanium waveguide electro-absorption modulator
- Author
-
Guy Lepage, Shashank Gupta, Peter Verheyen, Hongtao Chen, S. A. Srinivasan, Krishna C. Saraswat, Joris Van Campenhout, Marianna Pantouvaki, Philippe Absil, Gunther Roelkens, and Dries Van Thourhout
- Subjects
waveguide modulators ,Silicon photonics ,Materials science ,Technology and Engineering ,INTERCONNECTS ,business.industry ,optoelectronics ,optical interconnects ,02 engineering and technology ,Waveguide (optics) ,Diffusion capacitance ,Atomic and Molecular Physics, and Optics ,020210 optoelectronics & photonics ,Optical modulator ,Optics ,Modulation ,Electro-absorption modulator ,0202 electrical engineering, electronic engineering, information engineering ,Electro-absorption modulators ,Optoelectronics ,Insertion loss ,Photonics ,business ,SILICON - Abstract
We report a Germanium waveguide electro-absorption modulator with electro-optic bandwidth substantially beyond 50 GHz. The device is implemented in a fully integrated Si photonics platform on 200 mm silicon-on-insulator wafers with 220 nm top Si thickness. Wide open eye diagrams are demonstrated at 1610 nm operation wavelength for nonreturn-to-zero on-off keying (NRZ-OOK) modulation at data rates as high as 56 Gb/s. Dynamic extinction ratios up to 3.3 dB are obtained by applying drive voltages of 2V peak-to-peak, along with an optical insertion loss below 5.5 dB. The device has a low junction capacitance of just 12.8 fF, resulting in 12.8 fJ/bit of dynamic and similar to 1.2 mW of static power consumption in typical operating conditions. Wafer-scale performance data are presented and confirm the manufacturability of the device. The demonstrated modulator shows great potential for realizing high-density and low-power silicon photonic transceivers targeting short-reach optical interconnects at serial data rates of 56 Gb/s and beyond.
- Published
- 2016
46. Near-Infrared Grating Couplers for Silicon Nitride Photonic Wires
- Author
-
Ashim Dhakal, Shankar Kumar Selvaraja, Ananth Subramanian, Katarzyna Komorowska, Roel Baets, and Peter Verheyen
- Subjects
Technology and Engineering ,Fabrication ,Materials science ,RING-RESONATOR ,02 engineering and technology ,Chemical vapor deposition ,Grating ,optical waveguides ,01 natural sciences ,7. Clean energy ,010309 optics ,WAVE-GUIDES ,chemistry.chemical_compound ,optical materials ,020210 optoelectronics & photonics ,Optics ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,Gratings ,COMPACT ,Electronic circuit ,business.industry ,Near-infrared spectroscopy ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Wavelength ,Silicon nitride ,chemistry ,integrated optics ,Optoelectronics ,Photonics ,business - Abstract
Silicon nitride is a promising high-index material for dense photonic circuits and applications in the visible-midinfrared wavelength regime. Design, fabrication, and optical characterization of silicon nitride waveguides at visible-near-infrared wavelength are presented. Finally, design and experimental results are presented for the first time for linear and focused grating couplers (GCs) at near-infrared wavelength (900 nm) for plasma-enhanced chemical vapor deposition silicon nitride wires (220 x 500 nm) and compared with theoretical simulations. An experimental efficiency of 5.7 and 6.5 dB and 1-dB bandwidth of 26 and 40 nm are reported for the linear and focused GCs, respectively.
- Published
- 2012
47. Effect of the functionalization process on the performance of SiGe MEM resonators used for bio-molecular sensing
- Author
-
G. Bryce, I. De Wolf, Peter Verheyen, Sh. Ebrahim, Vladimir Cherman, Mohamed Abbas, A. Khaled, Ann Witvrouw, M. Raoof, and K. Jans
- Subjects
Materials science ,business.industry ,Blocking (radio) ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Resonator ,Silanization ,Scientific method ,Electronic engineering ,Optoelectronics ,Surface modification ,Electrical and Electronic Engineering ,Safety, Risk, Reliability and Quality ,business ,Beam (structure) - Abstract
Several SiGe Micro–Electro Mechanical (MEM) double clamped beam resonators with different lengths were chemically functionalized and electrically measured. The impact of each functionalization step, including oxidation, silanization, immobilization and blocking, on the resonators’ performance was studied. The resonance frequency of these resonators was measured before and after each processing step. The oxidation and blocking steps were found to have the greatest impact on the resonator’s performance. Fragility of long beam resonators is investigated.
- Published
- 2012
48. NBTI related time-dependent variability of mobility and threshold voltage in pMOSFETs and their impact on circuit performance
- Author
-
Esteve Amat, N. Ayala, Eddy Simoen, Xavier Aymerich, Rosana Rodriguez, Montserrat Nafria, Javier Martin-Martinez, Mireia Bargallo Gonzalez, and Peter Verheyen
- Subjects
Materials science ,Negative-bias temperature instability ,business.industry ,Spice ,Hardware_PERFORMANCEANDRELIABILITY ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Threshold voltage ,Reliability (semiconductor) ,CMOS ,MOSFET ,Hardware_INTEGRATEDCIRCUITS ,Inverter ,Optoelectronics ,Electrical and Electronic Engineering ,business ,Degradation (telecommunications) - Abstract
Threshold voltage (V"T) and mobility (@m) shifts due to process related variability and Negative Bias Temperature Instability are experimentally characterized in pMOSFETs. A simulation technique to include the time-dependent variabilities of V"T and @m in circuit simulators is presented and used to evaluate their effects on CMOS inverters performance. The results show that mobility degradation under NBTI stresses could have to be considered for the evaluation of the circuit performance after device aging.
- Published
- 2011
49. CHC degradation of strained devices based on SiON and high-k gate dielectric materials
- Author
-
Rosana Rodriguez, Esteve Amat, Eddy Simoen, Mireia Bargallo Gonzalez, Xavier Aymerich, Javier Martin-Martinez, Montserrat Nafria, and Peter Verheyen
- Subjects
Materials science ,business.industry ,Binary alloy ,Gate dielectric ,Quaternary compound ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,MOSFET ,Semiconductor alloys ,Optoelectronics ,Degradation (geology) ,Electrical and Electronic Engineering ,business ,High-κ dielectric - Abstract
A comparison between the Channel Hot-Carrier (CHC) degradation on strained pMOSFETs with SiGe source/drain (S/D) based on different gate dielectric materials, as SiON or HfSiON, has been done. The influence of the device channel orientation, channel length and temperature on the CHC damage has been studied.
- Published
- 2011
50. Stress Analysis and Junction Leakage of Sub-Melt Laser Annealed SiGe Epitaxial Layers
- Author
-
Roger Loo, Andriy Hikavyy, Eddy Simoen, Erik Rosseel, Geert Eneman, Peter Verheyen, Cor Claeys, Mireia Bargallo Gonzalez, and Tatiana Fernandez-Lanas
- Subjects
Materials science ,Annealing (metallurgy) ,business.industry ,Analytical chemistry ,Dopant Activation ,Condensed Matter Physics ,Epitaxy ,Laser ,Industrial and Manufacturing Engineering ,Electronic, Optical and Magnetic Materials ,law.invention ,Silicon-germanium ,Dwell time ,chemistry.chemical_compound ,Ion implantation ,chemistry ,law ,MOSFET ,Optoelectronics ,Electrical and Electronic Engineering ,business - Abstract
The purpose of this paper is to study the impact of the different post-epi process steps on the stress behavior of epitaxially grown Si1-x-Gex layers on Si substrates and the subsequent defectivity and device leakage. Stress measurements were performed by the in-line monitoring laser reflectance method to further investigate the intrinsic film stress dependence on the ion implantation conditions (atom size, depth of the implant, and dose) and the laser scan energy beam conditions during dopant activation (temperature, dwell time, and power). Moreover, the role of the millisecond laser anneal conditions on the area leakage current of embedded SiGe source/drain junctions is discussed. The analysis is complemented with structural characterization based on Nomarski microscopy.
- Published
- 2010
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