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549 results on '"de Waardt, H."'

1. Delivering 10 Gb/s optical data with picosecond timing uncertainty over 75 km distance

Author

Sotiropoulos, N., Okonkwo, C. M., Nuijts, R., de Waardt, H., and Koelemeij, J. C. J.

Subjects
Physics - Optics
Abstract

We report a method to determine propagation delays of optical 10 Gb/s data traveling through a 75 km long amplified fiber link with an uncertainty of 4 ps. The one-way propagation delay is determined by two-way exchange and cross correlation of short (< 1 ms) bursts of 10 Gb/s data, with a single-shot time resolution better than 2.5 ps. We thus achieve a novel optical communications link suited for both long-haul high-capacity data transfer and time transfer with picosecond-range uncertainty. This opens up the perspective of synchronized optical telecommunication networks allowing picosecond-range time distribution and millimeter-range positioning., Comment: This paper was published in Opt.Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-26-32643 Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law

Published
2014
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2. Mach-Zehnder interferometer based all optical flip-flop

Author

Hill, Martin T., de Waardt, H., Khoe, G. D., and Dorren, H. J. S.

Subjects
Physics - Optics
Abstract

For the first time an all optical flip-flop is demonstrated based on two coupled Mach-Zehnder interferometers which contain semiconductor optical amplifiers in their arms. The flip-flop operation is discussed and it is demonstrated using commercially available fiber pigtailed devices. Being based on Mach-Zehnder interferometers, the flip-flop has potential for very high speed operation., Comment: 7 pages, 3 figures

Published
2000

8. Assessment of scalable and fast 1310-nm optical switch for high-capacity data center networks

Author

Miao, W., De Waardt, H., van der Linden, R., Calabretta, N., Miao, W., De Waardt, H., van der Linden, R., and Calabretta, N.

Abstract

The development of high-capacity 1310-nm optical interconnects and the limitation of the electrical switches have necessitated the investigation of 1310-nm optical switches for flat data center networks. We have performed an experimental assessment of the scalable and fast 1310-nm optical switching system with three types of traffic, namely, the waveband 4× 25 Gb/s on-off keying (OOK), 28 Gb/s 4-level pulse-amplitude modulation (PAM4), and 40 Gb/s discrete multi-tone (DMT) by using the prototyped 1310-nm optical switch. 10-dB input power dynamic range has been achieved at 16 ports for waveband 4× 25Gb/s, 28-Gb/s PAM4, and 40-Gb/s DMT with power penalty of 1, 3, and 3.3 dB, respectively. Waveband 4× 25Gb/s OOK traffic shows the most promising results with port-count scaling up to 64 ports with limited penalty and allows for the potential scaling to larger port-count and more wavelength channels.

Published
2017

9. 1310nm high-capacity waveband switch node for flat optical data center networks

Author

Miao, W., de Waardt, H., Calabretta, N., Electro-Optical Communication, High Capacity Optical Transmission, and Low Latency Interconnect Networks

Abstract

Waveband switching capability of 1310nm SOA-based scalable and flow-controlled optical switching node is assessed. Experimental results show nanoseconds operation of 64-port switch node at 100 Gb/s WDM (4×25Gb/s) with >14dB dynamic range and

Published
2016

10. Comparison of single carrier 200G 4QAM, 8QAM and 16QAM in a WDM field trial demonstration over 612 km SSMF

Author

Khanna, G., Rahman, T., De Man, E., Riccardi, E., Pagano, A., Piat, A.C., Spinnler, B., Calabro, S., Rafique, D., Feiste, U., de Waardt, H., Sommerkorn-Krombholz, B., Drenski, T., Bohn, M., Napoli, A., Hanik, N., Electro-Optical Communication, and High Capacity Optical Transmission

Abstract

We present results of a field trial carried on Telecom Italia EDFA-only legacy link with 0.3 dB/km average fiber attenuation. Single carrier 200G WDM DP-4QAM, DP-8QAM and DP-16QAM were successfully transmitted with system margin of 4.1 dB, 4.3 dB and 2.6 dB respectively

Published
2016

12. Towards high-speed optical networks of the future

Author

Rohde, H., Lehmann, G., Schairer, W., Turkiewicz, J. P., Tangdiongga, E., De Waardt, H., Khoe, G. D., Sikora, E., Zhou, Y. R., Lord, A., Payne, D., Ben Yoo, S.J., Electrical Engineering, Electro-Optical Communication, and Center for Wireless Technology Eindhoven

Subjects
Computer science, business.industry, Code rate, Optical Time Domain Multiplex (OTDM), Multiplexer, Multiplexing, Transmission (telecommunications), Time-division multiplexing, Gigabit, Add-Drop Multiplexer (ADM), OTDM Demultiplexer, Electronic engineering, Time domain, 160 Gbit/s network, Field Trial, Telecommunications, business, Optical add-drop multiplexer, 160 Gbit/s transmission
Abstract

An overview of a wide choice of current technologies and components suitable for the use of 160 Gbit/s optical time domain multiplexing (OTDM) systems is given. A selection of the presented components were used to implement a 160 Gbit/s network. In a field trial on BT's network we demonstrated transmission over 550 km and a fully operating OTDM network including a time domain add-drop multiplexer (TD-OADM) at a data rate of 160 Gbit/s at a single wavelength and a tributary data rate of 10 Gbit/s.

Published
2005

13. Trellis Coded Modulation Transmission over 40km 6-LP Mode Fiber

Author

Yu, D., primary, A van Weerdenburg, J. J., additional, Silekens, E., additional, van Uden, R. G. H., additional, Tang, M., additional, Liu, D., additional, Velazquez-Benitez, A. M., additional, Sillard, P., additional, Molin, D., additional, Bigot-Astruc, M., additional, Amezcua-Correa, R., additional, de Waardt, H., additional, Koonen, A. M. J., additional, Fu, S., additional, and Okonkwo, C. M., additional

Published
2016
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14. 10 Spatial Mode Transmission over 40km 50µm Core Diameter Multimode Fiber

Author

van Weerdenburg, J. J. A., primary, Velazquez Benitez, A. M., additional, van Uden, R. G. H., additional, Antonio-Lopez, J. E., additional, Sillard, P., additional, Molin, D., additional, Bigot-Astruc, M., additional, Amezcua-Correa, A., additional, Huijskens, F. M., additional, Achten, F., additional, de Waardt, H., additional, Koonen, A. M. J., additional, Amezcua-Correa, R., additional, and Okonkwo, C. M., additional

Published
2016
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16. Semiconductor optical amplifiers and raman amplification for 1310-nm wavelength division multiplexed transmission

Author

Mazurek, P., Czyzak, P., de Waardt, H., Turkiewicz, J., Mazurek, P., Czyzak, P., de Waardt, H., and Turkiewicz, J.

Abstract

We investigate the utilization of semiconductor optical amplifiers (SOAs) and quantum-dot laser-based Raman amplifiers in high-capacity dense wavelength division multiplexed (DWDM) 1310-nm transmission systems. Performed simulations showed that in a 10×40 Gbit/s 10×40 Gbit/s system, the utilization of a single Raman amplifier in a back-propagation scheme can extend the maximum error-free (bit error rate <10 −9 <10−9 ) transmission distance by approximately 25 km in comparison with the same system utilizing only an SOA used as a preamplifier. We successfully applied a Raman amplifier in an 8×2×40 Gbit/s 8×2×40 Gbit/s 1310-nm polarization multiplexed (PolMux) DWDM transmission over 25 km. Conducted experiments showed that the utilization of a Raman amplifier in this system leads to 4-dB improvement of the average channel sensitivity in comparison to the same system utilizing SOAs. This sensitivity improvement can be translated into a higher power budget. Moreover, lower input optical power in a system utilizing a Raman amplifier reduces the four-wave mixing interactions. The obtained results prove that Raman amplification can be successfully applied in 1310-nm high-capacity transmission systems, e.g., to extend the reach of 400G and 1T Ethernet systems.

Published
2015

17. 480km transmission of MDM 576-Gb/s 8QAM using a few-mode re-circulating loop

Author

Sleiffer, V.A.J.M., Chen, H., Jung, Y., Kuschnerov, M., Richardson, D.J., Alam, S.U., Sun, Y., Grüner-Nielsen, L., Pavarelli, N., Snyder, B., Brien, P.O., Ellis, A.D., Koonen, A.M.J., and de Waardt, H.

Abstract

We demonstrate successful 3-mode-division-multiplexed × 192-Gb/s dual-polarization 8QAM (total 576 Gb/s) transmission over 480 km of few-mode fiber (FMF). This distance was obtained using an all few-mode re-circulating loop containing a 60 km FMF span.

Published
2013

18. 73.7 Tb/s (96 x 3 x 256-Gb/s) mode-divisionmultiplexed DP-16QAM transmission with inline MM-EDFA

Author

Sleiffer, V.A.J.M., Jung, Y., Veljanovski, V., van Uden, R.G.H., Kuschnerov, M., Chen, H., Inan, B., Grüner-Nielsen, Lars, Sun, Y., Richardson, David J., Alam, S.U., Poletti, F., Sahu, J.K., Dhar, A., Koonen, A.M.J., Corbett, B., Winfield, R., Ellis, Andrew D., and de Waardt, H.

Abstract

Transmission of a 73.7 Tb/s (96x3x256-Gb/s) DP-16QAM mode-division- multiplexed signal over 119km of few-mode fiber transmission line incorporating an inline multi mode EDFA and a phase plate based mode (de-)multiplexer is demonstrated. Data-aided 6x6 MIMO digital signal processing was used to demodulate the signal. The total demonstrated net capacity, taking into account 20% of FEC-overhead and 7.5% additional overhead (Ethernet and training sequences), is 57.6 Tb/s, corresponding to a spectral efficiency of 12 bits/s/Hz. © 2012 Optical Society of America.

Published
2012

20. Transmission of 11 x 224 Gb/s POLMUX-RZ-16QAM over 1500 km of LongLine and pure-silica SMF

Author

Alfiad, M. S., Kuschnerov, M., Jansen, S. L., Wuth, T., Van Den Borne, D., De Waardt, H., and Electro-Optical Communication

Abstract

We demonstrate transmission of 11 x 224-Gb/s POLMUX-RZ-16QAM over 1500 km with a channel spacing of 50 GHz. A hybrid configuration of LongLine and pure silica fiber is used to optimize both nonlinear tolerance and Raman gain.

Published
2010

21. 10 Spatial mode transmission over low differential mode group delay fibre employing all-fibre photonic lanterns

Author

van Weerdenburg, J. J. A, primary, Velazquez-Benitez, A. M., additional, van Uden, R. G. H., additional, Sillard, P., additional, Molin, D., additional, Amezcua-Correa, A., additional, Antonio-Lopez, J. E., additional, Kuschnerov, M., additional, Huijskens, F. M., additional, de Waardt, H., additional, Koonen, A. M. J., additional, Amezcua-Correa, R., additional, and Okonkwo, C. M., additional

Published
2015
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25. Exploiting micro-ring resonators for all-optical label extractor/eraser of inband labels and 160 Gb/s payload

Author

Calabretta, N., Urban, P.J., Geuzebroek, D., Klein, E.J., de Waardt, H., Dorren, H.J.S., Worhoff, K., Leijtens, X.J.M., Ismail, Agazzi N., Electro-Optical Communication, and Low Latency Interconnect Networks

Abstract

Photonic integration of an all-optical packet switch (AOPS) allows a great reduction of volume, power consumption and costs. Recently a 1x4 AOPS was successfully demonstrated by using an all-optical label extractor/eraser. Nonetheless, photonic integration of the AOPS was prevented by the label extractor/eraser integration. Here, we demonstrate a photonic integrated label extractor/eraser for in-band labeling addresses and 160 Gb/s payload by using a silicon micro-ring resonator with passtrough and drop ports. By exploiting the narrow bandwidth of the drop port and passthrough port simultaneous error-free label extraction/erasing has been performed without noticeable pulse distortion

Published
2008

26. Multi-stage En/decoders integrated in low loss Si3N4-SiO2 for incoherent spectral amplitude OCDMA on PON

Author

Huiszoon, B., Leinse, Arne, Geuzebroek, D.H., Augustin, L.M., Klein, E.J., de Waardt, H., Khoe, G.D., Koonen, A.M.J., Emplit, Ph., Delqué, M., Gorza, S.-P., Kockaert, P., and Leijtens, X

Subjects
EWI-11896, IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY, METIS-246012, IR-64623
Abstract

In this paper, we show and analyze, for the first time, the static performance of integrated multi-stage cascade and tree spectral amplitude OCDMA en/decoders (E/Ds) which are fabricated in the low loss Si3N4–SiO2 material system. Combined with incoherent broad spectral sources these E/Ds enable cost-effective node deployment in an OCDMA passive optical network architecture. We discuss the design of a crucial component, namely the 2x2 3dB multi-mode interference coupler. Finally we show measured spectral codes of two-stage E/Ds and compare these with modeled ones.

Published
2007

29. 10 x 111 Gbit/s, 50 GHz spaced, POLMUX-RZ-DQPSK transmission over 2375 km employing coherent equalisation

Author

Fludger, C. R.S., Duthel, T., Van Den Borne, D., Schulien, C., Schmidt, E.D., Wuth, T., De Man, E., Khoe, G. D., De Waardt, H., and Electro-Optical Communication

Abstract

We demonstrate spectrally efficient (2.0 b/s/Hz) transmission of 10 x 111 Gbit/s polarisation multiplexed 27.75 Gbaud RZ-DQPSK over 2375km of SSMF and 5 add-drop nodes. Coherent equalisation enables polarisation recovery and high chromatic dispersion tolerance.

Published
2007

30. How complex can integrated optical circuits become?

Author

Smit, Meint, HILL, M, Baets, Roel, BENTE, E, DORREN, H, KAROUTA, F, KOENRAAD, P, KOONEN, T, LEIJTENS, X, NöTZEL, R, OEI, S, DE WAARDT, H, VAN DER TOL, J, and KHOE, D

Subjects
Technology and Engineering
Published
2007

32. A 160 Gbit/s OTDM demonstrator for LOFAR networks

Author

Zhao, Yong-peng, Baker, L., Khoe, G. D., De Waardt, H., and Electro-Optical Communication

Subjects
Optical communications, Optical time division multiplexing (OTDM)/wavelength division multiplexing demonstrator, Hardware_ARITHMETICANDLOGICSTRUCTURES, 160 Gbit/s optical transmission, LOFAR network
Abstract

A 160 Gbit/s demonstrator towards the application for a low frequency antenna array network called LOFAR is presented. The structure of the LOFAR network and a combined optical time division multiplexing (OTDM)/wavelength division multiplexing (WDM) system architecture (with each wavelength operating at 160 Gbit/s) for the long-arms in the network are introduced. The requirement and key technologies enabling 160 Gbit/s system are reviewed and discussed. Approaches employed in laboratory to realize the 160 Gbit/s system demonstrator for LOFAR network application is described. All key system functions are built in the laboratory rather than employing commercial available equipments.

Published
2007

34. A robust modulation format for 42.8-Gbit/s long-haul transmission: RZ-DPSK or RZ-DQPSK?

Author

van den Borne, D., Jansen, S. L., Gottwald, E., Krummrich, P. M., Leisching, P., Khoe, G. D., de Waardt, H., Electrical Engineering, and Electro-Optical Communication

Abstract

In this paper we investigate the difference in transmission impairments between 42.8-Gbit/s RZ-DPSK and RZ-DQPSK modulation for long-haul transmission on a 50-GHz grid. We analyze the impact of narrowband filtering and discuss the influence it has on long-haul transmission using the RZ-DPSK and RZ-DQPSK modulation formats.

Published
2006

35. Nonlinear tolerance of differential phase shift keying modulated signals reduced by XPM

Author

Spinnler, B., Hecker-Denschlag, N., Calabró, S., Herz, M., Weiske, C. J., Schmidt, E. D., Van Den Borne, D., Khoe, G. D., De Waardt, H., Griffin, R., Wadsworth, S., Electrical Engineering, and Electro-Optical Communication

Abstract

We show that in order to maintain the high nonlinear tolerance of the DQPSK modulation format, XPM from neighboring OOK-modulated channels must be avoided. The negative impact on 10Gb/s DQPSK channels is higher than at 20Gb/s.

Published
2004

36. Demonstration of an all-optical variable delay for recirculating buffers

Author

Liu, Y., Hill, M.T., Geldenhuys, R., Calabretta, N., de Waardt, H., Khoe, G.D., Dorren, H.J.S., Optical cross-connects, Electro-Optical Communication, and Low Latency Interconnect Networks

Subjects
genetic structures, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, food and beverages, sense organs, eye diseases
Abstract

We have experimentally demonstrated a variable optical delay by using a re-circulating loop that is controlled by entirely all-optical signal processing technology. This concept can be utilized in all-optical re-circulating buffers.

Published
2004

42. A Field Trial of Mode-Division Multiplexing

Author

Sleiffer, V.A.J.M., primary, Chen, H., additional, Jung, Y., additional, Leoni, P., additional, Kuschnerov, M., additional, Fabian, H., additional, Schuh, H., additional, Kub, F., additional, Richardson, D.J., additional, Alam, S.U., additional, Gruner-Nielsen, L., additional, Sun, Y., additional, Ellis, A.D., additional, Koonen, A.M.J., additional, and De Waardt, H., additional

Published
2014
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44. 20 × 960-Gb/s Space-division-multiplexed 32QAM transmission over 60 km few-mode fiber

Author

Sleiffer, V. A. J. M., primary, Leoni, P., additional, Jung, Y., additional, Surof, J., additional, Kuschnerov, M., additional, Veljanovski, V., additional, Alam, S. U., additional, Richardson, D. J., additional, Grüner-Nielsen, L., additional, Sun, Y., additional, Corbett, B., additional, Winfield, R., additional, Calabrò, S., additional, and de Waardt, H., additional

Published
2014
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47. Ultra-high Capacity Transmission with Few-mode Silica and Hollow-core Photonic Bandgap Fibers

Author

Sleiffer, V.A.J.M., primary, Leoni, P., additional, Jung, Y., additional, Chen, H., additional, Kuschnerov, M., additional, Alam, S.U., additional, Petrovich, M., additional, Poletti, F., additional, Wheeler, N.V., additional, Baddela, N., additional, Hayes, J., additional, Fokoua, E. Numkam, additional, Richardson, D.J., additional, Grüner-Nielsen, L., additional, Sun, Y., additional, and de Waardt, H., additional

Published
2014
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50. 480 km transmission of MDM 576-Gb/s 8QAM using a few-mode re-circulating loop

Author

Sleiffer, V.A.J.M., Chen, H., Jung, Y., Kuschnerov, M., Richardson, D.J., Alam, S.U., Sun, Y., Grüner-Nielsen, L., Pavarelli, N., Snyder, B., O'Brain, P., Ellis, A.D., Koonen, A.M.J., de Waardt, H., Sleiffer, V.A.J.M., Chen, H., Jung, Y., Kuschnerov, M., Richardson, D.J., Alam, S.U., Sun, Y., Grüner-Nielsen, L., Pavarelli, N., Snyder, B., O'Brain, P., Ellis, A.D., Koonen, A.M.J., and de Waardt, H.

Abstract

We demonstrate successful 3-mode-division-multiplexed × 192-Gb/s dual-polarization 8QAM (total 576 Gb/s) transmission over 480 km of few-mode fiber (FMF). This distance was obtained using an all few-mode re-circulating loop containing a 60 km FMF span.

Published
2013

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