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• 2018

  Blind nonlinearity equalization by machine learning based clustering for single- and multi-channel coherent optical OFDM

  Giacoumidis, E., Matin, A., Wei, J., Doran, N. J., Barry, L. P. & Wang, X., 24 Feb 2018, In: Journal of Lightwave Technology. 36, 3, p. 721-727

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • machine learning
  • nonlinearity
  • logic
  • quadrature phase shift keying
  • Q factors

• First Multi-Terabit DWDM Transmission and Inline Amplification using a Black-Box Polarisation-Insensitive Fibre Optical Parametric Amplifier (PI-FOPA)

  Stephens, M. F. & Doran, N. J., 26 Apr 2018, 2017 European Conference on Optical Communication (ECOC). IEEE

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical parametric amplifiers
  • Erbium doped fiber amplifiers
  • Dense wavelength division multiplexing
  • Quadrature phase shift keying
  • Amplification

• Gain Spectrum Shaping Technique for One-Pump Fibre Optical Parametric Amplifier (FOPA)

  Gordienko, V., Stephens, M. F., Ferreira, F. & Doran, N. J., 26 Apr 2018, 2017 European Conference on Optical Communication (ECOC). IEEE

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • parametric amplifiers
  • light amplifiers
  • pumps
  • fibers
  • bandwidth

• Raman-Generated Pump and Its Use for Parametric Amplification and Phase Conjugation

  Gordienko, V., Stephens, M. F. & Doran, N. J., 15 Nov 2018, 2018 European Conference on Optical Communication (ECOC). IEEE

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • phase conjugation
  • pumps
  • fibers
  • high gain
  • parametric amplifiers

• Reduced Crosstalk, Polarization Insensitive Fiber Optical Parametric Amplifier (PI FOPA) for WDM Applications

  Stephens, M. F., Gordienko, V. & Doran, N., 15 Mar 2018, 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings. Optical Society of America, p. W3D.4 3 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical parametric amplifiers
  • Noise figure
  • Crosstalk
  • Wavelength division multiplexing
  • parametric amplifiers

• The Impact of Zero-Dispersion Wavelength Fluctuations in > 110 nm Fiber Optical Raman+Parametric Amplification

  Ribeiro, V., Gordienko, V., Gaur, C. & Doran, N. J., 14 Nov 2018, 2018 European Conference on Optical Communication, ECOC 2018. IEEE, Vol. 2018-September. 8535477

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • Optical parametric amplifiers
  • Optical fibers
  • Amplification
  • Wavelength
  • Fibers
• 2017

  20dB net-gain fiber optical parametric amplification of 18×120Gb/s polarization-multiplexed signals

  Stephens, M. F., Gordienko, V. & Doran, N. J., 23 Mar 2017, Optical Fiber Communication Conference 2017. Optical Society of America, paper Th4A.1

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical fibers
  • Amplification
  • Polarization
  • Fibers
  • Wavelength division multiplexing

• 20 dB net-gain polarization-insensitive fiber optical parametric amplifier with >2 THz bandwidth

  Stephens, M. F. C., Gordienko, V. & Doran, N. J., 1 May 2017, In: Optics Express. 25, 9, p. 10597-10609 13 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • parametric amplifiers
  • light amplifiers
  • bandwidth
  • fibers
  • polarization

• Access and metro network convergence for flexible end-to-end network design [invited]

  Ruffini, M., Achouche, M., Arbelaez, A., Bonk, R., di Giglio, A., Doran, N. J., Furdek, M., Jensen, R., Montalvo, J., Parsons, N., Pfeiffer, T., Quesada, L., Raack, C., Rohde, H., Schiano, M., Talli, G., Townsend, P., Wessaly, R., Wosinska, L., Yin, X. & 1 others, Payne, D. B., 1 Jun 2017, In: Journal of Optical Communications and Networking. 9, 6, p. 524-535 12 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Testbeds
  • Consolidation
  • Demonstrations
  • Network protocols
  • Costs

• Broadband gain-spectrum measurement for fiber optical parametric and Raman amplifiers

  Gordienko, V., Stephens, M. F. C. & Doran, N. J., 15 Aug 2017, In: IEEE Photonics Technology Letters. 29, 16, p. 1399-1402 4 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Optical parametric amplifiers
  • Laser tuning
  • Parametric amplifiers
  • parametric amplifiers
  • light amplifiers

• In-line and cascaded DWDM transmission using a 15dB net-gain polarization-insensitive fiber optical parametric amplifier

  Stephens, M. F. C., Tan, M., Gordienko, V., Harper, P. & Doran, N. J., 25 Sep 2017, In: Optics Express. 25, 20, p. 24312-24325

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • parametric amplifiers
  • light amplifiers
  • fibers
  • polarization
  • division

• Intra and inter-channel nonlinearity compensation in WDM coherent optical OFDM using artificial neural network based nonlinear equalization

  Giacoumidis, E., Mhatli, S., Wei, J., Le, S. T., Aldaya, I., Stephens, M. F. C., McCarthy, M. E., Ellis, A. D., Doran, N. J. & Eggleton, B., 23 Mar 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC 2017), proceedings. Optical Society of America, 3 p. paper Th2A.62

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Wavelength division multiplexing
  • Orthogonal frequency division multiplexing
  • Compensation and Redress
  • Neural networks
  • Equalizers

• Nonlinear inter-subcarrier intermixing reduction in coherent optical OFDM using fast machine learning equalization

  Giacoumidis, E., Wei, J., Mhatli, S., Stephens, M. F., Doran, N. J., Ellis, A. & Eggleton, B., 23 Mar 2017, Optical Fiber Communication Conference 2017. Optical Society of America, paper W3J.2

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Equalizers
  • Orthogonal frequency division multiplexing
  • Support vector machines
  • Machine learning
  • Quadrature amplitude modulation

• Novel broadband gain-spectrum measurement technique for Raman and parametric amplifiers

  Gordienko, V., Stephens, M. F., El-taher, A. & Doran, N. J., 23 Mar 2017, Optical Fiber Communication Conference 2017. Optical Society of America, W2A.11

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical parametric amplifiers
  • Parametric amplifiers
  • Wavelength division multiplexing
  • Polarization

• Performance limits in optical communications due to fiber nonlinearity

  Ellis, A. D., McCarthy, M. E., Al-Khateeb, M. A. Z., Sorokina, M. & Doran, N. J., 30 Sep 2017, In: Advances in Optics and Photonics. 9, 3, p. 429-503 75 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  File

  • telecommunication
  • optical communication
  • nonlinearity
  • fibers
  • predictions

• Reduction of Nonlinear Intersubcarrier Intermixing in Coherent Optical OFDM by a Fast Newton-Based Support Vector Machine Nonlinear Equalizer

  Giacoumidis, E., Mhatli, S., Stephens, M. F. C., Tsokanos, A., Wei, J., McCarthy, M. E., Doran, N. J. & Ellis, A. D., 7 Mar 2017, In: Journal of Lightwave Technology. 35, 12, p. 2391-2397 7 p., 7874191.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • newton
  • nonlinearity
  • classifiers
  • frequency division multiplexing
  • penalties

• Towards wide-bandwidth ultra-flat FOPAs

  Gordienko, V., Stephens, M. & Doran, N., 4 Sep 2017, ICTON 2017 - 19th International Conference on Transparent Optical Networks. IEEE, 8025079

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • Optical parametric amplifiers
  • Fibers
  • Bandwidth
  • Amplification
  • Wavelength

• Ultra-flat wideband single-pump Raman-enhanced parametric amplification

  Gordienko, V., Stephens, M. F. C., El-Taher, A. E. & Doran, N. J., 6 Mar 2017, In: Optics Express. 25, 5, p. 4810-4818 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • pumps
  • broadband
  • bandwidth
  • fibers
  • quadrature phase shift keying

• Unsupervised hierarchical clustering for blind nonlinear equalization in WDM coherent optical OFDM

  Giacoumidis, E., Matin, A., Wei, J., Doran, N. J. & Wang, X., 13 Nov 2017, Asia Communications and Photonics Conference, ACPC 2017. Optical Society of America, Vol. Part F83-ACPC 2017.

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Quadrature phase shift keying
  • Wavelength division multiplexing
  • Equalizers
  • Carbon Monoxide
  • Orthogonal frequency division multiplexing
• 2016

  4 Tb/s transmission reach enhancement using 10 × 400 Gb/s super-channels and polarization insensitive dual band optical phase conjugation

  Ellis, A. D., Tan, M., Iqbal, M. A., Al-Khateeb, M. A. Z., Gordienko, V., Saavedra Mondaca, G., Fabbri, S., Stephens, M. F. C., McCarthy, M. E., Perentos, A., Phillips, I. D., Lavery, D., Liga, G., Maher, R., Harper, P., Doran, N., Turitsyn, S. K., Sygletos, S. & Bayvel, P., 15 Apr 2016, In: Journal of Lightwave Technology. 34, 8, p. 1717-1723 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • phase conjugation
  • augmentation
  • polarization
  • asymmetry

• Characterisation of cascaded Raman-assisted fibre optical parametric amplifiers using WDM QPSK signals

  Redyuk, A., Stephens, M. F. C. & Doran, N., 22 Mar 2016, Optical Fiber Communication Conference 2016. Optical Society of America, paper M3D.3. (OSA Technical Digest).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • Optical parametric amplifiers
  • quadrature phase shift keying
  • Quadrature phase shift keying
  • Crosstalk
  • Wavelength division multiplexing

• Demonstration of an ultra-flat Raman-enhanced fibre optical parametric amplifier (FOPA) with >110nm gain-bandwidth

  Gordienko, V., Stephens, M. F., Takasaka, S., El-Taher, A. E., Phillips, I. D., Forysiak, W., Sugizaki, R. & Doran, N. J., 5 Dec 2016, ECOC 2016 Düsseldorf : 42nd European Conference and Exhibition on Optical Communications. Berlin (DE): VDE, p. 1019-1021 3 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical parametric amplifiers
  • Quadrature phase shift keying
  • Demonstrations
  • Fibers
  • Bandwidth

• Experimental comparison of artificial neural network and volterra based nonlinear equalization for CO-OFDM

  Giacoumidis, E., Le, S. T., Aldaya, I., Wei, J., McCarthy, M., Doran, N. & Eggleton, B., 22 Mar 2016, Optical Fiber Communication Conference 2016. Optical Society of America, paper W3A.4

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Equalizers
  • Orthogonal frequency division multiplexing
  • Neural networks
  • transfer functions
  • Transfer functions

• First experimental demonstration of nonlinear inverse synthesis transmission over transoceanic distances

  Le, S. T., Phillips, I. D., Prilepsky, J. E., Harper, P., Doran, N. J., Ellis, A. D. & Turitsyn, S. K., 22 Mar 2016, Optical Fiber Communication Conference 2016. Optical Society of America, 3 p. Tu2A.1. (OSA Technical Digest).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • Demonstrations
  • synthesis
  • products
  • performance

• Performance characterisation and limitations of high-gain discrete Raman amplification

  El-Taher, A. E., Stephens, M., Gordienko, V., Forysiak, W., Harper, P. & Doran, N., 16 Dec 2016, CLEO: Science and Innovations 2016. Optical Society of America, paper STu1F.6

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • high gain
  • Amplification
  • Fibers
  • fibers
  • characterization

• Suppression of WDM four-wave mixing crosstalk in fibre optic parametric amplifier using Raman-assisted pumping

  Redyuk, A., Stephens, M. F. C. & Doran, N. J., 19 Oct 2016, In: Optics Express. 23, 21, p. 27240-27249 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • parametric amplifiers
  • crosstalk
  • four-wave mixing
  • fiber optics
  • pumping
• 2015

  100-Gb/s point-to-point solutions for long-reach passive optical networks in sparse rural and urban areas

  Giacoumidis, E., Talli, G., Suibhne, N. M., Le, S. T., Doran, N. J. & Payne, D. B., 2015, PIERS 2015 Prague: Progress in Electromagnetics Research Symposium, proceedings. Cambridge, MA (US): Electromagnetics Academy, p. 2468-2472 5 p. (PIERS proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Passive optical networks
  • Fiber to the x
  • Optical switches
  • Phase shift keying
  • FIR filters

• Artificial neural network nonlinear equalizer for coherent optical OFDM

  Jarajreh, M. A., Giacoumidis, E., Aldaya, I., Le, S. T., Tsokanos, A., Ghassemlooy, Z. & Doran, N. J., 15 Feb 2015, In: IEEE Photonics Technology Letters. 27, 4, p. 387-390 17 p.

  Research output: Contribution to journal › Article › peer-review

  • Equalizers
  • Orthogonal frequency division multiplexing
  • frequency division multiplexing
  • Neural networks
  • transfer functions

• Decision-directed-free blind phase noise estimation for COOFDM

  Le, S. T., McCarthy, M., Suibhne, N. M., Haigh, P. A., Giacoumidis, E., Doran, N., Ellis, A. D. & Turitsyn, S. K., 2015, Optical Fiber Communication Conference 2015. Optical Society of America, paper W1E.5. (OSA technical digest (online)).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • phase error
  • Phase noise
  • Carbon Monoxide
  • Orthogonal frequency division multiplexing
  • Compensation and Redress

• Demonstration of phase-conjugated subcarrier coding for fiber nonlinearity compensation in CO-OFDM transmission

  Le, S. T., McCarthy, M. E., Suibhne, N. M., Al-Khateeb, M. A. Z., Giacoumidis, E., Doran, N., Ellis, A. D. & Turitsyn, S. K., 1 Jun 2015, In: Journal of Lightwave Technology. 33, 11, p. 2206-2212 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • frequency division multiplexing
  • coding
  • nonlinearity
  • fibers
  • binary phase shift keying

• Digital back propagation in soliton coherent transmission

  Yushko, O., Fedoruk, M., Blow, K., Redyuk, A., Turitsyn, S., Doran, N. & Ellis, A., 9 Nov 2015, 2015 Tyrrhenian International Workshop on Digital Communications, TIWDC 2015. IEEE, p. 20-23 4 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Solitons
  • Wave transmission
  • Jitter
  • Backpropagation
  • Fibers

• Enhanced superchannel transmission using phase conjugation

  Ellis, A. D., Phillips, I. D., Tan, M., Stephens, M. F. C., McCarthy, M. E., Al Kahteeb, M. A. Z., Iqbal, M. A., Perentos, A., Fabbri, S., Gordienko, V., Lavery, D., Liga, G., Saavedra, M. G., Maher, R., Sygletos, S., Harper, P., Doran, N. J., Bayvel, P. & Turitsyn, S. K., 2015, European Conference on Optical Communication, ECOC. IEEE, 3 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  Open Access

  File

  • Optical phase conjugation
  • Polarization

• Experimental verification of visible light communications based on multi-band CAP modulation

  Haigh, P. A., Chvojka, P., Zvanovec, S., Ghassemlooy, Z., Le, S. T., Kanesan, T., Giacoumidis, E., Doran, N., Papakonstantinou, I. & Darwazeh, I., 2015, Optical Fiber Communication conference 2015. Optical Society of America, paper Tu2G.2. (OSA technical digest).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Visible light communication
  • Testbeds
  • optical communication
  • Modulation
  • modulation

• Fiber nonlinearity-induced penalty reduction in CO-OFDM by ANN-based nonlinear equalization

  Giacoumidis, E., Le, S. T., Ghanbarisabagh, M., McCarthy, M., Aldaya, I., Mhatli, S., Jarajreh, M. A., Haigh, P. A., Doran, N. J., Ellis, A. D. & Eggleton, B. J., 30 Oct 2015, In: Optics Letters. 40, 21, p. 5113-5116 4 p.

  Research output: Contribution to journal › Article › peer-review

  • penalties
  • nonlinearity
  • Q factors
  • fibers
  • frequency division multiplexing

• Fibre optical parametric amplifier incorporating a Raman-pump for reduced four-wave mixing crosstalk

  Stephens, M. F., Phillips, I. D., Harper, P. & Doran, N. J., 2015, The European Conference on Lasers and Electro-Optics 2015. Optical Society of America, 1 p. CI_P_5

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

• Improved WDM performance of a fibre optical parametric amplifier using Raman-assisted pumping

  Stephens, M. F. C., Phillips, I. D., Rosa, P., Harper, P. & Doran, N. J., 14 Jan 2015, In: Optics Express. 23, 2, p. 902-911 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • parametric amplifiers
  • light amplifiers
  • pumping
  • fibers
  • performance

• Numerical analysis of artificial neural network and volterra-based nonlinear equalizers for coherent optical OFDM

  Giacoumidis, E., Wei, J., Jarajreh, M. A., Le, S. T., Haigh, P. A., Bohata, J., Perentos, A., Mhatli, S., Ghanbarisabagh, M., Aldaya, I. & Doran, N. J., 2015, PIERS 2015 Prague: Progress in Electromagnetics Research Symposium, proceedings. Cambridge, MA (US): Electromagnetics Academy, p. 2473-2477 5 p. (PIERS proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Equalizers
  • Orthogonal frequency division multiplexing
  • Numerical analysis
  • Neural networks
  • Transfer functions

• Reach extension of high-capacity LR-PONs in chain configuration of distributed amplifier structure

  Giacoumidis, E., Wei, J., Talli, G., Doran, N. & Payne, D., 2015, Asia Communications and Photonics Conference 2015. Optical Society of America, paper AS3H.5. (OSA Technical Digest).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • FIR filters
  • Cables

• The impact of pump phase-modulation and filtering on WDM signals in a fibre optical parametric amplifier

  Stephens, M. F. C., Redyuk, A., Sygletos, S., Phillips, I., Harper, P., Blow, K. & Doran, N., 2015, Proceedings of Optical Fiber Communication Conference, 22–26 March 2015, Los Angeles, California, United States. Optical Society of America, paper W2A.43. (OSA technical digest).

  Research output: Chapter in Book/Report/Conference proceeding › Conference publication

  • Optical parametric amplifiers
  • Phase modulation
  • Wavelength division multiplexing
  • parametric amplifiers
  • light amplifiers