Find Research Outputs

Search concepts
Selected filters
2019

86-GBaud subcarrier multiplexed 16QAM signal generation using an electrical 90 degree hybrid and IQ mixers

Zhang, T., Sánchez, C., Skvortcov, P., Ferreira, F., Sygletos, S., Phillips, I. D., Forysiak, W. & Ellis, A. D., 12 Apr 2019, In : Optics Express. 27, 8, p. 11819-11829 11 p.

Research output: Contribution to journalArticle

Open Access
File
diplexers
quadrature amplitude modulation
MIMO (control systems)
taps
crosstalk

Combating Fiber Nonlinearity Using Dual-Order Raman Amplification and OPC

Al-khateeb, M., Tan, M., Zhang, T. & Ellis, A. D., 1 Jun 2019, In : IEEE Photonics Technology Letters. 31, 11, p. 877-880 4 p.

Research output: Contribution to journalArticle

Open Access
File
Optical phase conjugation
phase conjugation
Amplification
nonlinearity
fibers

Distributed Raman Amplification Design for Fibre Nonlinearity Compensation with Mid-Link Optical Phase Conjugation

Tan, M., Al-khateeb, M. A. Z., Zhang, T., Harper, P. & Ellis, A. D., 19 Sep 2019, 21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE, Vol. 2019-July. 8840568. (2019 21st International Conference on Transparent Optical Networks (ICTON)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

phase conjugation
nonlinearity
fibers
amplifiers
configurations

Distributed Raman Amplification for Combating Optical Nonlinearities in Fibre Transmission

Tan, M., Al-Khateeb, M. A. Z., Asif Iqbal, M. & Ellis, A. D., 25 Apr 2019, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2018. IEEE, Vol. Part F113-CLEOPR 2018. 140618

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical phase conjugation
Light transmission
Amplification
Fibers
Compensation and Redress

Enhanced Nonlinearity Compensation Efficiency of Optical Phase Conjugation System

Ali, A. A. I., Al-khateeb, M., Zhang, T., Ferreira, F. & Ellis, A., 22 Apr 2019, 2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings. Optical Society of America, 8696550

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical phase conjugation
phase conjugation
Demonstrations
nonlinearity
fibers

Fiber nonlinearity compensation using erbium-doped-fiber-assisted dual-order Raman amplification

Tan, M., Al-Khateeb, M., Zhang, T. & Ellis, A. D., 10 May 2019, CLEO: Science and Innovations, CLEO_SI 2019. Optical Society of America, Vol. Part F129-CLEO_SI 2019. SW3O.1

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical phase conjugation
Erbium
Amplification
Fibers
Compensation and Redress

Filter Bank Multi-Sub-Band Transmission for Optical Systems with Mode Multiplexing

Santos, L. F. D., Ferreira, F., Ellis, A. D. & Mello, D. A. A., 25 Feb 2019, In : IEEE Photonics Journal. 11, 2, 8651480.

Research output: Contribution to journalArticle

Open Access
File
Filter banks
multiplexing
Multiplexing
Optical systems
filters

Nonlinear Performance of Few-Mode Fiber Links with Intermediate Coupling

Ferreira, F., Sánchez, C., Sygletos, S. & Ellis, A. D., 1 Feb 2019, In : Journal of Lightwave Technology. 37, 3, p. 989 - 999 11 p., 8558561.

Research output: Contribution to journalArticle

Open Access
File
coupled modes
fibers
propagation modes
penalties
four-wave mixing

Unwanted Four-Wave Mixing in Fibre Optical Parametric Amplifiers

Gordienko, V., Al-khateeb, M. A. Z., Ferreira, F. M., Ellis, A. D. & Doran, N. J., 19 Sep 2019, 21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE, Vol. 2019-July. 8840198. (2019 21st International Conference on Transparent Optical Networks (ICTON)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

parametric amplifiers
light amplifiers
four-wave mixing
fibers
products
2018

100-Gb/s Doubly Differential QPSK System with Improved Receiver Sensitivity Using Polarization Switching

Zhang, T., Sanchez, C. & Ellis, A., 16 Sep 2018, Frontiers in Optics / Laser Science 2018: OSA Technical Digest (Optical Society of America, 2018). Optical Society of America, JW3A.77

Research output: Chapter in Book/Report/Conference proceedingConference contribution

quadrature phase shift keying
receivers
polarization
thresholds

200-Gb/s Polarization Multiplexed Doubly Differential QPSK Signal Transmission over 80-km SSMF Using Tandem SSB without Optical Amplification

Zhang, T., Sánchez, C., Phillips, I. D., Sygletos, S. & Ellis, A. D., 26 Apr 2018, 2017 European Conference on Optical Communication (ECOC). IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
quadrature phase shift keying
signal transmission
polarization
receivers
recovery

224-Gb/s Carrier-recovery-free Doubly Differential 2ASK-8PSK for Short-reach Optical Networks

Zhang, T., Sanchez, C., Al-khateeb, M., Ali, A., Tan, M., Skvortcov, P., Phillips, I., Sygletos, S. & Ellis, A., 16 Jul 2018, In : IEEE Photonics Technology Letters.

Research output: Contribution to journalArticle

Open Access
File
decoding
Fiber optic networks
Decoding
recovery
Recovery

224Gb/s Single Carrier Doubly Differential 2ASK-8PSK System without Carrier Recovery

Zhang, T., Sanchez, C., Al-khateeb, M., Phillips, I. & Ellis, A., 13 May 2018, Conference on Lasers and Electro-Optics: OSA Technical Digest (online). Optical Society of America, SM2C.6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
constellations
wireless communication
penalties
recovery
polarization
Open Access
File
quadrature phase shift keying
signal transmission
receivers
amplifiers
penalties

Analysis of the nonlinear Kerr effects in optical transmission systems that deploy optical phase conjugation

Al-Khateeb, M., Iqbal, M. A., Tan, M., Ali, A., McCarthy, M. E., Harper, P. & Ellis, A. D., 29 Jan 2018, In : Optics Express. 26, 3

Research output: Contribution to journalArticle

Open Access
File
phase conjugation
Kerr effects
compensators
nonlinearity

An Expression for Nonlinear Noise in Optical Phase Conjugation Systems with Lumped Ampli?ers

Ali, A. A. I., Costa, C. S., Al-khateeb, M. A. Z., Ferreira, F. M. & Ellis, A. D., 16 Oct 2018, In : IEEE Photonics Technology Letters.

Research output: Contribution to journalArticle

Open Access
File
Optical phase conjugation
phase conjugation
Amplification
Fibers
margins

Dielectric Metasurfaces for Optical Communications and Spatial Division Multiplexing

Kruk, S., Ferreira, F., Mac-suibhne, N., Tsekrekos, C., Kravchenko, I., Ellis, A., Neshev, D., Turitsyn, S. & Kivshar, Y., May 2018, p. FW3H.4.

Research output: Contribution to conferencePaper

multiplexing
division
optical communication
engineers
telecommunication

Experimental demonstration of 72% reach enhancement of 3.6Tbps optical transmission system using mid-link Optical Phase Conjugation

Al-Khateeb, M., Tan, M., Iqbal, M., Ali, A., McCarthy, M. E., Harper, P. & Ellis, A. D., 31 Aug 2018, In : Optics Express. 26, 18, p. 23960-23968

Research output: Contribution to journalArticle

Open Access
File
phase conjugation
quadrature phase shift keying
augmentation
nonlinearity
interference

First WDM-SDM optical network with spatial sub-group routing ROADM nodes supporting spatial lane changes

Ben-Ezra, Gerola, M., Siracusa, D., Pederzolli, F., Marom, D. M., Blau, M., Macdonald, J., Psaila, N., Sanchez-Costa, C., Ellis, A. D., Forns, X., Ferran, J. F., Jimenez, F., Christodoulia, N., Shariati, B., Klonidis, D. & Tomkos, I., 5 Jul 2018, Photonic Networks and Devices, Networks 2018. Optical Society of America, Vol. Part F106-Networks 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber optic networks
Wavelength division multiplexing
Costs
Software defined networking
SDM

Impact of Linear Mode Coupling on the Nonlinear Transmission Performance of Few-Mode Fibres

Ferreira, F., Sánchez, C., Sygletos, S. & Ellis, A. D., 27 Sep 2018, 2018 20th International Conference on Transparent Optical Networks (ICTON). IEEE, (2018 20th International Conference on Transparent Optical Networks (ICTON)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

coupled modes
fibers
configurations

Limits of Optical Fibre Communication Systems

Ellis, A. D., Ferreira, F., Zhang, T. & Al-Khateeb, M., 27 Sep 2018, 2018 20th International Conference on Transparent Optical Networks (ICTON). IEEE, 8473669. (2018 20th International Conference on Transparent Optical Networks (ICTON)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
optical communication
telecommunication
optical fibers
performance prediction
solitary waves

Mitigation of Optical Fiber Nonlinearities in OFDM Systems Using FWM-Aware Constellation Modulation Technique

Sánchez, C., Al-Khateeb, M., Zhang, T., Ferreira, F., Skvortcov, P., Wei, J., Sygletos, S. & Ellis, A. D., 15 Nov 2018, 2018 European Conference on Optical Communication (ECOC). IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Orthogonal frequency division multiplexing
Optical fibers
Modulation
Fibers

Nonlinear Compensation Using Digital Back-Propagation in Few-Mode Fibre Spans with Intermediate Coupling

Ferreira, F., Sánchez, C., Sygletos, S. & Ellis, A. D., 26 Apr 2018, European Conference on Optical Communication. IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
fibers
propagation

Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems

Al-Khateeb, M., McCarthy, M. E., Sánchez, C. & Ellis, A. D., 31 Aug 2018, In : Optics Express. 26, 18, p. 23945-23959

Research output: Contribution to journalArticle

Open Access
File
phase conjugation
nonlinearity
numerical analysis
augmentation
amplifiers

Overcoming degradation in spatial multiplexing systems with stochastic nonlinear impairments

Ferreira, F., Sánchez, C., Sygletos, S. & Ellis, A. D., 3 Dec 2018, In : Scientific Reports. 8, 16 p., 17539.

Research output: Contribution to journalArticle

Open Access
File
impairment
multiplexing
nonlinearity
degradation
optical communication

Performance Enhancement Prediction for Optical Phase Conjugation in Systems with 100km Amplifier Spacing

Al-Khateeb, M., McCarthy, M. E. & Ellis, A. D., 26 Apr 2018, 2017 European Conference on Optical Communication (ECOC). IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

phase conjugation
amplifiers
spacing
augmentation
predictions

Symmetry Requirements for 34dB Nonlinearity Compensation in OPC Systems

Al-Khateeb, M., Tan, M. & Ellis, A. D., 15 Nov 2018, 2018 European Conference on Optical Communication (ECOC). IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
nonlinearity
requirements
phase conjugation
symmetry
misalignment

Tackling Africa's digital divide 706 639/624/1075/187 comment

Lavery, M. P. J., Abadi, M. M., Bauer, R., Brambilla, G., Cheng, L., Cox, M. A., Dudley, A., Ellis, A. D., Fontaine, N. K., Kelly, A. E., Marquardt, C., Matlhane, S., Ndagano, B., Petruccione, F., Slavík, R., Romanato, F., Rosales-Guzmán, C., Roux, F. S., Roux, K., Wang, J. & 1 others, Forbes, A., 1 May 2018, In : Nature Photonics. 12, 5, p. 249-252 4 p.

Research output: Contribution to journalComment/debate

Solar equipment
Optical links
Developing countries
Photonics
Telecommunication networks

Technologies for the Implementation of Spectrally-Spatially Flexible Optical Networks (SS-FONs)

Marom, D., Blau, M., Macdonald, J., Psaila, N., Sanchez, C., Ellis, A., Ferran, J. F., Jimenez, F., Papastergiou, G., Ben-ezra, S., Gerola, M., Siracusa, D., Pederzolli, F., Shariati, B., Klonidis, D. & Tomkos, I., 5 Jul 2018, Photonic Networks and Devices 2018. Optical Society of America, p. NeTh1F.6

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber optic networks
Wavelength division multiplexing

The Impact of Dispersion Slope on Fiber Nonlinearity in Ultra-Wideband Optical Communication System

Ali, A., Ferreira, F., Al-Khateeb, M., Charlton, D., Laperle, C. & Ellis, A. D., 15 Nov 2018, 2018 European Conference on Optical Communication (ECOC). IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
optical communication
telecommunication
nonlinearity
slopes
broadband

Training-Aided Channel Estimation and Equalization in SDM Systems with MISO Pre-convergence under Strong Coupling

Sánchez, C., Ferreira, F., Wei, J., Sygletos, S. & Ellis, A. D., 26 Apr 2018, p. 1-3. 3 p.

Research output: Contribution to conferencePaper

Open Access
File
Quadrature phase shift keying
Channel estimation
Fibers
Lasers

Transparent Dielectric Metasurfaces for Spatial Mode Multiplexing

Kruk, S., Ferreira, F., Mac Suibhne, N., Tsekrekos, C., Kravchenko, I., Ellis, A., Neshev, D., Turitsyn, S. & Kivshar, Y., 16 Aug 2018, In : Laser and Photonics Reviews. 12, 8, 1800031.

Research output: Contribution to journalLetter

Open Access
File
Optical communication
multiplexing
Multiplexing
C band
optical communication
2017

A high-sensitivity coherent receiver without frequency recovery enabled by doubly differential QPSK

Zhang, T., Sanchez, C., Sygletos, S., Sadeghioon, L., McCarthy, M. E. & Ellis, A. D., 25 Oct 2017, 2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings. IEEE, Vol. 2017-January. p. 1-2 2 p. paper STu3M.2

Research output: Chapter in Book/Report/Conference proceedingConference contribution

quadrature phase shift keying
Quadrature phase shift keying
receivers
recovery
Recovery

Calculation of receiver sensitivities in (orthogonal) subcarrier multiplexing microwave-optical links

Gutiérrez, F. A., Martin, E. P., Perry, P., Ellis, A. D. & Barry, L. P., 15 Feb 2017, In : Applied Sciences. 7, 2, 6 p., 184.

Research output: Contribution to journalArticle

Open Access
File
Microwave links
Optical links
Multiplexing
multiplexing
Microwave

Experimental Analysis of Nonlinear Impairments in Fibre Optic Transmission Systems up to 7.3 THz

Saavedra Mondaca, G., Tan, M., Elson, D. J., Galdino, L., Semrau, D., Iqbal, M. A., Phillips, I. D., Harper, P., MacSuibhne, N., Ellis, A. D., Lavery, D., Thomsen, B. C., Killey, R. I. & Bayvel, P., 5 Oct 2017, In : Journal of Lightwave Technology. 35, 21

Research output: Contribution to journalArticle

Open Access
File
impairment
fiber optics
bandwidth
interference
quadrature amplitude modulation

Experimental investigation of nonlinear signal distortions in ultra-wideband transmission systems

Saavedra, G., Tan, M., Elson, D. J., Galdino, L., Semrau, D., Iqbal, M. A., Phillips, I., Harper, P., MacSuibhne, N., Ellis, A., Lavery, D., Thomsen, B. C., Killey, R. & Bayvel, P., 23 Mar 2017, Optical Fiber Communication Conference 2017. Optical Society of America

Research output: Chapter in Book/Report/Conference proceedingConference contribution

signal distortion
Signal distortion
Nonlinear distortion
Ultra-wideband (UWB)
broadband

Experimental verification of four wave mixing in lumped optical transmission systems that employ mid-link optical phase conjugation

Al-Khateeb, M., McCarthy, M. E. & Ellis, A. D., 19 May 2017, Conference on Lasers and Electro-Optics 2017. Optical Society of America, JTh2A.64

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Optical phase conjugation
Four wave mixing
Light transmission
Amplification

Four wave mixing in distributed Raman amplified optical transmission systems

Al-Khateeb, M. A. Z., Tan, M., Iqbal, M. A., McCarthy, M., Harper, P. & Ellis, A. D., 23 Jan 2017, 2016 IEEE Photonics Conference, IPC. IEEE, p. 795-796 2 p. ThB1.1

Research output: Chapter in Book/Report/Conference proceedingConference contribution

four-wave mixing
margins
pumping
predictions
approximation

Four-wave mixing in optical phase conjugation system with pre-dispersion

Ali, A., Sánchez, C., Al-Khateeb, M., Ferreira, F. & Ellis, A. D., 20 Nov 2017, Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC), 2017. IEEE, 3 p. (2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
phase conjugation
four-wave mixing
optical communication
telecommunication
Q factors

Impact of optical phase conjugation on the nonlinear Shannon limit

Ellis, A. D., Al Khateeb, M. A. Z. & McCarthy, M. E., 15 Feb 2017, In : Journal of Lightwave Technology. 35, 4, p. 792-798 7 p.

Research output: Contribution to journalArticle

Open Access
File
phase conjugation
transmitter receivers
division
format
signal to noise ratios

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 proceedingConference contribution

Wavelength division multiplexing
Orthogonal frequency division multiplexing
Neural networks
Equalizers
Carbon Monoxide

Nonamplified 100Gbps Doubly Differential QPSK Optical Signal Transmission Over 80 km SSMF Without Carrier Recovery

Zhang, T., Sánchez, C., Ali, A. & Ellis, A. D., 20 Nov 2017, 2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC): IEEE. IEEE, (2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
quadrature phase shift keying
signal transmission
optical communication
receivers
recovery

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 proceedingConference contribution

Equalizers
Orthogonal frequency division multiplexing
Support vector machines
Learning systems
Quadrature amplitude modulation

Nonlinearity compensation using optical phase conjugation in optical fiber transmission systems

Al-Khateeb, M. & Ellis, A. D., 15 Nov 2017, 8th International Conference and Exhibition on Lasers, Optics & Photonics. OMICS Publishing Group, Vol. 4.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
phase conjugation
optical fibers
nonlinearity
fibers
polarization

Nonlinear transmission performance in delay-managed few-mode fiber links with intermediate coupling

Ferreira, F., Sánchez, C., Suibhne, N., Sygletos, S. & Ellis, A., 24 Mar 2017, Optical Fiber Communication Conference 2017. Optical Society of America, Th2A.53

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Fibers

On the Feasibility of Mode-Division Multiplexed Transmission over Few-Mode Fibres

Ferreira, F., Sánchez, C., Sygletos, S. & Ellis, A. D., 1 Dec 2017, Microwave and Optoelectronics Conference (IMOC), 2017 SBMO/IEEE MTT-S International. IEEE, Vol. 2017-January. p. 1-5 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
division
fibers
Fibers
coupled modes
Data storage equipment

Optimization of parametric comb generation using interferometric wavelength selective switch

Al-Khateeb, M., McCarthy, M. E., Gutierrez Pascual, M. D., Smyth, F. & Ellis, A. D., 19 May 2017, CLEO: Applications and Technology 2017. Optical Society of America, JW2A.31

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Switches
Bandwidth
Wavelength

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 journalReview article

Open Access
File
optical communication
telecommunication
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 journalArticle

Open Access
File
newton
nonlinearity
frequency division multiplexing
classifiers
crosstalk

Self-starting optical–electrical–optical homodyne clock recovery for phase-modulated signals

Sooudi, E., Ellis, A. D. & Manning, R. J., 1 Sep 2017, In : Optics Letters. 42, 17, p. 3486-3489 4 p.

Research output: Contribution to journalArticle

Open Access
File
clocks
recovery
binary phase shift keying
time measurement
retarding