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Your search keyword '"Marco N. Petrovich"' showing total 223 results
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223 results on '"Marco N. Petrovich"'

1. Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands

Author

Deming Kong, Yong Liu, Zhengqi Ren, Yongmin Jung, Chanju Kim, Yong Chen, Natalie V. Wheeler, Marco N. Petrovich, Minhao Pu, Kresten Yvind, Michael Galili, Leif K. Oxenløwe, David J. Richardson, and Hao Hu

Subjects
Science
Abstract

Continuous spectral translation could allow expansion of the bandwidth available for communication without having to develop transceivers for the new bands. Here, the authors demonstrate this using AlGaAsOI nanowaveguides as spectral translators between the mature telecom C band and the 2-μm wavelength band.

Published
2022
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2. Toward High Accuracy Positioning in 5G via Passive Synchronization of Base Stations Using Thermally-Insensitive Optical Fibers

Author

Wenwu Zhu, Eric R. Numkam Fokoua, Yong Chen, Thomas D. Bradley, Seyed Reza Sandoghchi, Meng Ding, Gregory T. Jasion, Marco N. Petrovich, Francesco Poletti, Mingshan Zhao, David J. Richardson, and Radan Slavik

Subjects
5G, positioning, synchronization, hollow core fiber, Electrical engineering. Electronics. Nuclear engineering, TK1-9971
Abstract

Positioning accuracy in 5G networks (achieved via techniques based on observed time difference of arrival (OTDoA)) is limited by the synchronization error between the cellular base stations. Here, we demonstrate that these base stations can be synchronized entirely passively through the use of emerging forms of hollow core fiber (HCF) as the data transmission medium in the 5G front-haul network. This is possible due to the excellent thermal stability of HCF which allows the synchronization error among cellular base stations to be reduced significantly as compared to systems based on standard single mode fibers. Reducing this synchronization error is necessary to meet the strict timing requirements envisaged for 5G networks. We analyze the polarization mode dispersion, chromatic dispersion, and thermal stability of the HCF and give suggestions on how to use the HCF to balance overall radio over fiber (RoF) link performance in 5G front-haul networks. In a proof of concept experiment we show that HCF links enable the positioning error (calculated with the OTDoA method) to be reduced down to the centimeter level even when subject to tens of degrees Celsius temperature variations. This represents a 20-fold improvement over standard single mode fiber systems which would require active compensation schemes to achieve similar levels of time synchronization accuracy.

Published
2019
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3. Gas Sensor Based on Photonic Crystal Fibres in the 2ν3 and ν2 + 2ν3 Vibrational Bands of Methane

Author

Jose M. Lopez-Higuera, Marco N. Petrovich, Olga M. Conde, Jose M. Lazaro, and Ana M. Cubillas

Subjects
gas detectors, methane, fibre optic sensors, photonic crystal fibres, hollow-core photonic bandgap fibres, absorption spectroscopy, Chemical technology, TP1-1185
Abstract

In this work, methane detection is performed on the 2ν3 and ν2 + 2ν3 absorption bands in the Near-Infrared (NIR) wavelength region using an all-fibre optical sensor. Hollowcore photonic bandgap fibres (HC-PBFs) are employed as gas cells due to their compactness, good integrability in optical systems and feasibility of long interaction lengths with gases. Sensing in the 2ν3 band of methane is demonstrated to achieve a detection limit one order of magnitude better than that of the ν2 + 2ν3 band. Finally, the filling time of a HC-PBF is demonstrated to be dependent on the fibre length and geometry.

Published
2009
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4. Multi-Line Fit Model for the Detection of Methane at ν2 + 2ν3 Band using Hollow-Core Photonic Bandgap Fibres

Author

Ana M. Cubillas, Jose M. Lazaro, Olga M. Conde, Marco N. Petrovich, and Jose M. Lopez-Higuera

Subjects
Gas sensing, Fibre optic sensors, Microstructure devices, Absorption spectroscopy, Hollow-Core Photonic Bandgap Fibres, Chemical technology, TP1-1185
Abstract

Hollow-core photonic bandgap fibres (HC-PBFs) have emerged as a novel technology in the field of gas sensing. The long interaction pathlengths achievable with these fibres are especially advantageous for the detection of weakly absorbing gases. In this work, we demonstrate the good performance of a HC-PBF in the detection of the ν2 + 2ν3 band of methane, at 1.3 μm. The Q-branch manifold, at 1331.55 nm, is targeted for concentration monitoring purposes. A computationally optimized multi-line model is used to fit the Q-branch. Using this model, a detection limit of 98 ppmv (parts per million by volume) is estimated.

Published
2009
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5. Hollow Core DNANF Optical Fiber with

Author

Yong Chen 0015, Marco N. Petrovich, E. Numkam Fokoua, A. I. Adamu, M. R. A. Hassan, Hesham Sakr, Radan Slavík, S. Bakhtiari Gorajoobi, Marcelo Alonso, R. Fatobene Ando, A. Papadimopoulos, T. Varghese, D. Wu, M. Fatobene Ando, K. Wisniowski, S. R. Sandoghchi, Gregory T. Jasion, David J. Richardson, and Francesco Poletti

Published
2024

9. Hollow core fibres and their applications.

Author

David J. Richardson, Natalie V. Wheeler, Yong Chen 0015, John R. Hayes, Seyed Reza Sandoghchi, Gregory T. Jasion, Thomas D. Bradley, E. Numkam Fokoua, Z. Liu, Radan Slavík, Peter Horák, Marco N. Petrovich, and Francesco Poletti

Published
2017

15. Internal Gas Composition and Pressure in As-drawn Hollow Core Optical Fibers

Author

Shuichiro Rikimi, Yong Chen, Thomas W. Kelly, Ian A. Davidson, Gregory T. Jasion, Matthew Partridge, Kerrianne Harrington, Thomas D. Bradley, Austin A. Taranta, Francesco Poletti, Marco N. Petrovich, David J. Richardson, and Natalie V. Wheeler

Subjects
Atomic and Molecular Physics, and Optics
Published
2022

17. Roughness measurements inside hollow glass fibers.

Author

Xavier Buet, Coralie Brun, Gilles Tessier, Jérôme Gateau, Bruno Bresson, Matteo Ciccotti, Seyed Reza Sandoghchi, Eric R. Numkam Fokoua, Marco N. Petrovich, Francesco Poletti, David J. Richardson, and Damien Vandembroucq

Published
2016

23. Photonic bandgap fibres for low-latency data transmission.

Author

David J. Richardson, Yong Chen 0015, Natalie V. Wheeler, John R. Hayes, Thomas D. Bradley, Zhixin Liu, Seyed Reza Sandoghchi, Gregory T. Jasion, E. Numkam Fokoua, David R. Gray, Radan Slavík, Yongmin Jung, Nicholas Heng-Loong Wong, Francesco Poletti, and Marco N. Petrovich

Published
2015
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25. Data transmission through up to 74.8 km of hollow-core fiber with coherent and direct-detect transceivers.

Author

Maxim Kuschnerov, Vincent A. J. M. Sleiffer, Yingkan Chen, Erik De Man, Yong Chen 0015, Zhixin Liu, Seyed Reza Sandoghchi, Gregory T. Jasion, Tom Bradley, Eric R. Numkam Fokoua, John R. Hayes, Natalie V. Wheeler, David R. Gray, Radan Slavík, Yongmin Jung, Nicholas L. Wong, Brian J. Mangan, Francesco Poletti, Marco N. Petrovich, and David J. Richardson

Published
2015
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26. 40 Gbps WDM transmission over 1.15 km HC-PBGF using the first InP-based Mach Zehnder modulator at 2 μm.

Author

M. U. Sadiq, Hongyu Zhang, Michael Gleeson, Nan Ye, Brendan Roycroft, Niamh Kavanagh, C. Robert, H. Yang, Kevin Thomas 0007, Agnieszka Gocalinska, Zhihong Li, Yong Chen 0015, Natalie V. Wheeler, John R. Hayes, Shaif-Ul Alam, Francesco Poletti, Marco N. Petrovich, David J. Richardson, Brian Kelly, John O'Carroll, Richard Phelan, Emanuele Pelucchi, Peter O'Brien, Frank H. Peters, Fatima Gunning, and Brian Corbett

Published
2015
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43. WDM transmission at 2µm over low-loss Hollow Core Photonic Bandgap Fiber.

Author

Naoise Mac Suibhne, Zhihong Li, Benedikt Baeuerle, John Zhao, John P. Wooler, Shaif-Ul Alam, Francesco Poletti, Marco N. Petrovich, Alexander M. Heidt, Natalie V. Wheeler, Naveen K. Baddela, E. Numkam Fokoua, Ian P. Giles, Dean J. Giles, Richard Phelan, John O'Carroll, Brian Kelly, Dominic Murphy, Brian Corbett, Andrew D. Ellis, David J. Richardson, and Fatima C. Garcia Gunning

Published
2013

44. 30.7 Tb/s (96×320 Gb/s) DP-32QAM transmission over 19-cell Photonic Band Gap Fiber.

Author

Vincent A. J. M. Sleiffer, Yongmin Jung, Paolo Leoni, Maxim Kuschnerov, Natalie V. Wheeler, Naveen K. Baddela, R. G. H. van Uden, Chigo M. Okonkwo, John R. Hayes, John P. Wooler, E. Numkam Fokoua, Radan Slavík, Francesco Poletti, Marco N. Petrovich, V. Veljanovski, Shaif-Ul Alam, David J. Richardson, and Huug de Waardt

Published
2013

45. Fibre‐Optic Sensing

Author

Brian Culshaw and Marco N. Petrovich

Subjects
Optical fiber, Materials science, law, business.industry, Optoelectronics, Photonics, business, Photonic crystal fibre, law.invention
Published
2020

47. Activating Unconventional Wavelength Bands for Coherent Optical Communication by On-chip Continuous Spectral Translation

Author

Deming Kong, Yong Liu, Zhengqi Ren, Yongmin Jung, Chanju Kim, Yong Chen, Natalie V. Wheeler, Marco N. Petrovich, Minhao Pu, Kresten Yvind, Michael Galili, Leif Oxenløwe, David Richardson, and Hao Hu

Abstract

Despite being perceived historically to provide "unlimited" bandwidth, today’s optical communication systems are fast approaching their capacity limits in the conventional telecom bands. To satisfy the ever-increasing capacity demand, opening up new wavelength bands is becoming an appealing solution both in cabled and free-space optical communications in the transparent windows. However, this would ordinarily require the development of whole optical transceivers for any new wavelength band, which is both time-consuming and expensive. Here, we present an on-chip continuous spectral translation based coherent optical communication approach that can exploit existing commercial transceivers to unlock the vast and currently unused potential new wavelength bands rather than dictate the need to develop new coherent transceivers operating directly in those bands. The spectral translators are continuous-wave pumped aluminium gallium arsenide on insulator (AlGaAsOI) nanowaveguides that can provide a continuous conversion bandwidth over an octave. This enables unprecedented coherent transmission in the 2-μm wavelength band using well-developed conventional C-band transmitters and coherent receivers. We demonstrate 318.25-Gbit s-1 Nyquist wavelength-division multiplexed coherent transmission over a 1.15-km hollow-core fibre in the 2-μm wavelength band using this approach. Our demonstration paves the way for coherently transmitting, detecting, and processing signals at wavelength bands beyond the capability of today’s devices.

Published
2022

48. Toward High Accuracy Positioning in 5G via Passive Synchronization of Base Stations Using Thermally-Insensitive Optical Fibers

Author

Seyed Reza Sandoghchi, Radan Slavík, Yong Chen, Francesco Poletti, David J. Richardson, Marco N. Petrovich, Thomas D. Bradley, Mingshan Zhao, Wenwu Zhu, Eric Numkam Fokoua, Meng Ding, and Gregory T. Jasion

Subjects
Optical fiber, General Computer Science, Computer science, 02 engineering and technology, Synchronization, law.invention, Base station, 020210 optoelectronics & photonics, Radio over fiber, law, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, General Materials Science, OTDOA, General Engineering, Single-mode optical fiber, Multilateration, Polarization mode dispersion, positioning, hollow core fiber, lcsh:Electrical engineering. Electronics. Nuclear engineering, synchronization, lcsh:TK1-9971, 5G, Data transmission
Abstract

Positioning accuracy in 5G networks (achieved via techniques based on observed time difference of arrival (OTDoA)) is limited by the synchronization error between the cellular base stations. Here, we demonstrate that these base stations can be synchronized entirely passively through the use of emerging forms of hollow core fiber (HCF) as the data transmission medium in the 5G front-haul network. This is possible due to the excellent thermal stability of HCF which allows the synchronization error among cellular base stations to be reduced significantly as compared to systems based on standard single mode fibers. Reducing this synchronization error is necessary to meet the strict timing requirements envisaged for 5G networks. We analyze the polarization mode dispersion, chromatic dispersion, and thermal stability of the HCF and give suggestions on how to use the HCF to balance overall radio over fiber (RoF) link performance in 5G front-haul networks. In a proof of concept experiment we show that HCF links enable the positioning error (calculated with the OTDoA method) to be reduced down to the centimeter level even when subject to tens of degrees Celsius temperature variations. This represents a 20-fold improvement over standard single mode fiber systems which would require active compensation schemes to achieve similar levels of time synchronization accuracy.

Published
2019

49. Hollow-core fibres for temperature-insensitive fibre optics and its demonstration in an Optoelectronic oscillator

Author

Marco N. Petrovich, Radan Slavik, E. Numkam Fokoua, Thomas D. Bradley, Yong Chen, Udara S. Mutugala, R. Curtis, David J. Richardson, Gregory T. Jasion, Seyed Reza Sandoghchi, and Francesco Poletti

Subjects
Propagation time, Optical fiber, Computer science, Coaxial cable, Phase (waves), lcsh:Medicine, 02 engineering and technology, 01 natural sciences, Article, Synchronization, law.invention, 010309 optics, Telescope, 020210 optoelectronics & photonics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, lcsh:Science, Multidisciplinary, business.industry, lcsh:R, Electrical engineering, Particle accelerator, Radio propagation, lcsh:Q, business
Abstract

Many scientific and practical applications require the propagation time through cables to be well defined and known, e.g., an error in the evaluation of signal propagation time in the OPERA experiment in 2011 initially erroneously concluded that Neutrinos are faster than light. In fact, there are many other physical infrastructures such as synchrotrons, particle accelerators, telescope arrays and phase arrayed antennae that also rely on precise time synchronization. Time synchronization is also of importance in new practical applications like autonomous manufacturing (e.g., synchronization of assembly line robots) and upcoming 5G networks. Even when the propagation time through a coaxial cable or optical fibre is carefully calibrated, it is affected by changes in the ambient temperature, posing a serious technological challenge. We show how hollow-core optical fibres can address this issue.

Published
2018

50. The thermal phase sensitivity of both coated and uncoated standard and hollow core fibers down to cryogenic temperatures

Author

Thomas D. Bradley, Wenwu Zhu, Yong Chen, Radan Slavik, Austin Taranta, Eric Numkam Fokoua, Mingshan Zhao, Francesco Poletti, David J. Richardson, and Marco N. Petrovich

Subjects
Phase transition, Materials science, Optical fiber, Single-mode optical fiber, Physics::Optics, 02 engineering and technology, engineering.material, Atomic and Molecular Physics, and Optics, law.invention, 020210 optoelectronics & photonics, Coating, law, Phase (matter), Thermal, 0202 electrical engineering, electronic engineering, information engineering, engineering, Fiber, Sensitivity (control systems), Composite material
Abstract

The thermal phase sensitivity of an optical fiber quantifies the degree to which a change in ambient temperature modifies the accumulated phase of light propagating through it. This sensitivity is often the limiting factor to the performance of fiber-based interferometers. Here we compare the thermal phase sensitivity of a hollow core fiber (HCF) and a standard single mode fiber (SMF-28) from -180 °C up to the room temperature. We report measurements on fibers both with and without acrylate coating that enables an accurate estimation of the coating contribution. The thermal phase sensitivity of fibers without any coating decreases at low temperatures. For SMF-28 it is reduced by a factor of four at -180 °C as compared to the room temperature. For HCF, the thermal phase sensitivity becomes negative at low temperatures, crossing zero around -70 °C, making the HCF operated at that temperature fully insensitive to small temperature fluctuations. The coating significantly influences a fibers overall thermal phase sensitivity, especially at low temperatures, since it goes through a phase transition from a rubbery state at room temperature to stiff glassy state at low temperatures. We quantify the coating contribution and suggest fiber coating design rules to obtain fibers with reduced or even zero thermal phase sensitivity.

Published
2020

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