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UNLOC: UNLocking the Capacity of Optical Communications
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1 May 2012
Unlocking the capacity of optical communications through the development of new theoretical and experimental approaches.
Funder EPSRC
Amount £ 4 803 336
Project website http://www.unloc.net
Description
UNLOC is a UK research programme focused on unlocking the capacity of optical communications. It is a £4.8 million five-year collaborative project between the Optical Networks Group at UCL, Aston Institute of Photonic Technologies at Aston Universityand multiple industry partners. Funded by the Engineering and Physical Sciences Research Council (EPSRC), our team's mission is to unlock the capacity of optical communication systems.
Research within UNLOC focuses on developing new theoretical and experimental approaches to increase the capacity of optical fibre transmission technologies, which support and transform our economy, science, education, healthcare, transport and almost every other aspect of modern life.
Combining techniques from information theory, coding, advanced modulation formats, digital signal processing and advanced photonics, we develop breakthrough techniques to ensure that the underlying communications infrastructure can continue to meet the growing demand for faster and more reliable global networks.
Outputs
- Publications
SSBI Mitigation and the Kramers–Kronig Scheme in Single-Sideband Direct-Detection Transmission With Receiver-Based Electronic Dispersion Compensation, Z Li, M.S. Erkılınc, K Shi, E Sillekens, L Galdino, B.C. Thomsen, P Bayvel, R. I. Killey, Journal of Lightwave Technology, 2017
Achievable rate degradation of ultra-wideband coherent fiber communication systems due to stimulated Raman scattering, D Semrau, R Killey, P Bayvel, Optics Express, 2017
Nonlinear Fourier transform for optical data processing and transmission: advances and perspectives, S.K. Turitsyn, J.E. Prilepsky, S.T. Le, S Wahls, L.L. Frumin, M Kamalian, S.A. Derevyanko, Optica, 2017
Throughput Gains from Adaptive Transceivers in Nonlinear Elastic Optical Networks, D.J. Ives, A. Alvarado, S.J. Savory, Journal of Lightwave Technology, 2017
Reduction of Nonlinear Inter-Subcarrier Intermixing in Coherent Optical OFDM by a Fast Newton-based Support Vector Machine Nonlinear Equalizer, E Giacoumidis, S Mhatli, M.F.C. Stephens, A Tsokanos, J Wei, M.E. McCarthy, N.J. Doran, A.E Ellis, Journal of Lightwave Technology, 2017
On the limits of digital back-propagation in the presence of transceiver noise, L Galdino, D Semrau, D Lavery, G Saavedra, C.B. Czegledi, E Agrell, R.I. Killey, P Bayvel, Optics Express, 2017
On the bandwidth dependent performance of split transmitter-receiver optical fiber nonlinearity compensation, D Lavery, R Maher, G Liga, D Semrau, L Galdino and P Bayvel, Optics Express, 2017
Digital back-propagation for nonlinearity mitigation in distributed Raman amplified links, G Saavedra, D Semrau, L Galdino, R.I Killey, and P Bayvel, Optics Express, 2017\
Digital Signal Processing for Coherent Transceivers Employing Multilevel Formats, M.S. Faruk and S.J. Savory, Journal of Lightwave Technology, 2017
Modulation format dependence of digital nonlinearity compensation performance in optical fibre communication systems, T Xu, N. A. Shevchenko, D Lavery, D Semrau, G Liga, A Alvarado, R. I. Killey, and P Bayvel, Optics Express, 2017
Ripple distribution for nonlinear fiber-optic channels, M Sorokina, S Sygletos, and S Turitsyn, Optics Express, 2017
Digital signal processing for fiber nonlinearities, J. C. Cartledge, F. P. Guiomar, F. R. Kschischang, G Liga, and M. P. Yankov, Optics Express, 2017
Digital backpropagation accounting for polarization-mode dispersion, C. B. Czegledi, G Liga, D Lavery, M Karlsson, E Agrell, S. J. Savory, and P. Bayvel, Optics Express, 2017
Achievable information rates estimates in optically amplified transmission systems using nonlinearity compensation and probabilistic shaping, D Semrau, T Xu, N A Shevchenko, M Paskov, A Alvarado, R I Killey, P Bayvel, Optics Letters, 2017
Mitigation of nonlinear transmission effects for OFDM 16-QAM optical signal using adaptive modulation, Anton S Skidin, Oleg S Sidelnikov, Mikhail P Fedoruk, Sergei K Turitsyn, Optics Express, 2016
Sparse identification for nonlinear optical communication systems: SINO method, Mariia Sorokina, Stylianos Sygletos, Sergei Turitsyn, Optics Express, 2016
Comparison of digital signal-signal beat interference compensation techniques in direct-detection subcarrier modulation systems, Zhe Li, M. Sezer Erkilinc, Lidia Galdino, Kai Shi, Benn C. Thomsen, Polina Bayvel, Robert I. Killey, Optics Express, 2016
Impact of input FBG reflectivity and forward pump power on RIN transfer in ultralong Raman laser amplifiers, Giuseppe Rizzelli, Md Asif Iqbal, Francesca Gallazzi, Paweł Rosa, Mingming Tan, Juan Diego Ania-Castañón, Lukasz Krzczanowicz, Pedro Corredera, Ian Phillips, Wladek Forysiak, Paul Harper, Optics Express, 2016
An Experimental Comparison of Coded Modulation Strategies for 100 Gbit/s Transceivers 1.14
E Sillekens, A Alvarado, CM Okonkwo, BC Thomsen, Journal of Lightwave Technology, 2016Two-Stage Linearization Filter for Direct-Detection Subcarrier Modulation, Zhe Li, Sezer Erkilinc, Robert Maher, Lidia Galdino, Kai Shi, Benn C Thomsen, Polina Bayvel, Robert I Killey, IEEE Photonics Technology Letters, 2016
Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments, Laurent Schmalen, Alex Alvarado, Rafael Rios-Muller, Journal of Lightwave Technology, 2016
DSP algorithms for recovering single-carrier Alamouti coded signals for PON applications, Md. Saifuddin Faruk, Hadrien Louchet, Sezer Erkılınç, Seb J. Savory, Optics Express , 2016
Capacity estimates for optical transmission based on the nonlinear Fourier transform, Stanislav Derevyanko, Yaroslav Prilepsky, Sergei Turitsyn, Nature Communications, 2016
Calculation of mutual information for nonlinear communication channel at large signal-to-noise ratio, Ivan Terekhov, Alexey Reznichenko, Sergei Turitsyn, Physical Review E, 2016
Periodic nonlinear Fourier transform for fiber-optic communications, Part II: eigenvalue communication, Morteza Kamalian, Yarosalv Prilepsky, Son Thai Le, Sergei Turitsyn, Optics Express, 2016
Periodic nonlinear Fourier transform for fiber-optic communications, Part I: theory and numerical methods, Morteza Kamalian, Yarosalv Prilepsky, Son Thai Le, Sergei Turitsyn, Optics Express, 2016
On Probabilistic Shaping of Quadrature Amplitude Modulation for the Nonlinear Fiber Channel, Tobias Fehenberger, Alex Alvarado, Georg Bocherer, Norbert Hanik, Journal of Lightwave Technology, 2016
QPSK 3R regenerator using a phase sensitive amplifier, A Perentos, S Fabbri, M Sorokina, ID Phillips, SK Turitsyn, AD Ellis, S Sygletos, Optics Express, 2016
Comparison of DSP-based nonlinear equalizers for intra-channel nonlinearity compensation in coherent optical OFDM, Elias Giacoumidis, Sofien Mhatli, Tu Nguyen, Son T Le, Ivan Aldaya, Mary E McCarthy, Andrew D Ellis, Benjamin J Eggleton, Optics Letters, 2016
The Benefit of Split Nonlinearity Compensation for Optical Fiber Communications, Lavery D, Ives D, Liga G, Alvarado A, Savory S, Bayvel P, Photonics Technology Letters, IEEE, 2016
Using 25 GbE Client Rates to Access the Gains of Adaptive Bit- and Code-Rate Networking, David J. Ives, Paul Wright, Andrew Lord, and Seb J. Savory , Journal of Optical Communications and Networking, 2016
Effect of second order signal–noise interactions in nonlinearity compensated optical transmission systems, Mohammad A. Z. Al-Khateeb, Mary McCarthy, Christian Sanchez, and Andrew Ellis, Optics Letters, 2016
Polarization-Insensitive Single-Balanced Photodiode Coherent Receiver for Long-Reach WDM-PONs, Sezer Erkilinç, Domaniç Lavery, Kai Shi, Benn Thomsen, Polina Bayvel, Robert Killey, Seb Savory, Journal of Lightwave Technology, 2016
Spectrally Efficient WDM Nyquist Pulse-Shaped Subcarrier Modulation Using a Dual-Drive Mach–Zehnder Modulator and Direct Detection, Sezer Erkilinc, MP. Thakur, S. Pachnicke, H. Griesser, J. Mitchell, Benn Thomsen, Polina Bayvel, Robert Killey, Journal of Lightwave Technology, 2016
Simplified DSP-Based Signal–Signal Beat Interference Mitigation Technique for Direct Detection OFDM, Zhe Li, Sezer Erkilinc, R. Bouziane, Benn Thomsen, Polina Bayvel, Robert Killey, Journal of Lightwave Technology, 2016
Replacing the soft-decision FEC limit paradigm in the design of optical communication systems, Alex Alvarado, Erik Agrell, Domanic Lavery, Robert Maher, Polnia Bayvel, Journal of Lightwave Technology, 2016
Analytical Investigations on Carrier Phase Recovery in Dispersion-Unmanaged n-PSK Coherent Optical Communication Systems, Tianhua Xu, Gunnar Jocobsen, Sergei Popov, Jie Li, Tiegen Liu, Yimo Zhang, Polina Bayvel, MDPI – Photonics, 2016
Information Rates of Next-Generation Long-Haul Optical Fiber Systems Using Coded Modulation, Gabriele Liga, Alex Alvarado, Erik Agrell, Polina Bayvel, Journal of Lightwave Technology, 2016
Sensitivity gains by mismatched probabilistic shaping for optical communication systems, Tobias Fehenberger, Domaniç Lavery, Robert Maher, Alex Alvarado, Polina Bayvel, N. Hanik, , IEEE Photonics Technology Letters, 2016
Demonstration of Nonlinear Inverse Synthesis Transmission over Transoceanic Distances, S. T. Le , I. Phillips ; J. Prilepsky ; P. Harper ; A. Ellis ; S. Turitsyn, Journal of Lightwave Technology, 2016
PMD tolerant nonlinear compensation using in-line phase conjugation, ME McCarthy, MAZ Al Kahteeb, FM Ferreira, AD Ellis, Optics express, 2016
Communication networks beyond the capacity crunch, AD Ellis, N Mac Suibhne, D Saad, DN Payne, Philosophical Transactions of the Royal Society, Part A, 2016
Design of a 1 Tb/s Superchannel Coherent Receiver, D. S. Millar, R. Maher, D. Lavery, T. Koike-Akino, M. Pajovic, A. Alvarado, M. Paskov, K. Kojima, K. Parsons, B. Thomsen, S. Savory, and P. Bayvel, Journal of Lightwave Technology, 2016
On the Impact of Optimal Modulation and FEC Overhead on Future Optical Networks, Alex Alvarado, David J. Ives, Seb J. Savory, Polina Bayvel, Journal of Lightwave Technology, 2016
Implications of information theory in optical fibre communications Agrell E, Alvarado A, Kschischang FR, Philosophical Transactions A, 2016
Maximizing the optical network capacity, Polina Bayvel, Robert Maher, Tianhua Xu, Gabriele Liga, Nikita A. Shevchenko, Domaniç Lavery, Alex Alvarado, Robert I. Killey, Philosophical Transactions A, 2016
Increasing the information rates of optical communications via coded modulation: a study of transceiver performance, Robert Maher, Alex Alvarado, Domanic Lavery and Polina Bayvel, Scientific Reports, 2016
4 Tbit/s transmission reach enhancement using 10x400 Gbit/s super-channels and polarization insensitive dual band optical phase conjugation, A. D. Ellis, M. Tan, M. A. Iqbal, M. A. Z. Al Khateeb, V. Gordienko, G. Saavedra. M., S.Fabbri, M. F. C. Stephens, M. E. McCarthy, A. Perentos, I. D. Phillips, D. Lavery, G. Liga, R.Maher, P. Harper, N. J. Doran, S. K. Turitsyn, S. Sygletos, P. Bayvel, Journal of Lightwave Technology, 2016
Amplification Schemes and Multi-Channel DBP for Unrepeatered Transmission, L. Galdino, M. Tan, A. Alvarado, D. Lavery, R. Maher, J. D. Ania-Castaon, P. Harper, S. Markovejs, B. C. Thomsen, and P. Bayvel, Journal of Lightwave Technology, 2016
Demonstration of Sensitivity Gains by Probabilistic Shaping for Optical Communication Systems, Tobias Fehenberger, Domaniç Lavery, Robert Maher, Alex Alvarado, Polina Bayvel, Norbert Hanik, Photonics Technology Letters, IEEE (Volume:PP , Issue: 99 ), 2016
High spectral density transmission emulation using amplified spontaneous emission noise, DJ. Elson, L. Galdino, R. Maher, RI. Killey, BC. Thomsen, P. Bayvel, Optics Letters, 2016
Transmission performance improvement using random DFB laser based Raman amplification and bidirectional second-order pumping, M. Tan, P. Rosa, S. T. Le, Md. A. Iqbal, I. D. Phillips, and P. Harper, Opt. Express 24, 2215-2221 (2016)