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• 2019

  Distributed Pumping Architecture to Improve the Noise Performance of Broadband Discrete Raman Amplifier

  Iqbal, M. A., Krzczanowicz, L., Philips, I. D., Harper, P. & Forysiak, W., 22 Apr 2019, 2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings. Optical Society of America, 8696365

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

  • quadrature phase shift keying
  • Quadrature phase shift keying
  • Noise figure
  • Wavelength
  • pumping

• 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 proceeding › Conference publication

  • Optical phase conjugation
  • Amplification
  • Compensation and Redress
  • Fibers

• Linear and Nonlinear Noise Characterisation of Dual Stage Broadband Discrete Raman Amplifiers

  Iqbal, M. A., Al-Khateeb, M. A. Z., Krzczanowicz, L., Phillips, I. D., Harper, P. & Forysiak, W., 15 Jul 2019, In: Journal of Lightwave Technology. 37, 14, p. 3679-3688 10 p., 8723646.

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

  Open Access

  File

  • amplifiers
  • broadband
  • characterization
  • fibers
  • signal to noise ratios

• Noise Performance Improvement of Broadband Discrete Raman Amplifiers Using Dual Stage Distributed Pumping Architecture

  Iqbal, M. A., Krzczanowicz, L., Philips, I. D., Harper, P. & Forysiak, W., 15 Jul 2019, In: Journal of Lightwave Technology. 37, 14, p. 3665-3671 7 p., 8723558.

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

  • pumping
  • amplifiers
  • broadband
  • performance
  • quadrature phase shift keying

• Performance characterization of broadband discrete Raman amplifier with high capacity transmission formats

  Krzczanowicz, L., Iqbal, M. A., Phillips, I., Harper, P. & Forysiak, W., 5 Nov 2019, 2019 Asia Communications and Photonics Conference, ACP 2019 - Proceedings. Optical Society of America, M3B.2. (Asia Communications and Photonics Conference, ACP; vol. 2019-November).

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

  • Quadrature amplitude modulation
  • Wavelength division multiplexing

• Performance Estimation of Discrete Raman Amplification within Broadband Optical Networks

  Krzczanowicz, L., Al-khateeb, M. A. Z., Iqbal, M. A., Phillips, I., Harper, P. & Forysiak, W., 22 Apr 2019, 2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings. Optical Society of America, 8696796

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

  • Erbium doped fiber amplifiers
  • Broadband networks
  • penalties
  • Fiber optic networks
  • Amplification

• Recent Advances in Discrete Raman Amplifiers and their Applications to Wideband Optical Networks

  Krzczanowicz, L., Iqbal, M. A., Al-khateeb, M. A. Z., Phillips, I. D., Harper, P. & Forysiak, W., 19 Sep 2019, 21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE, Vol. 2019-July. 8840021. (2019 21st International Conference on Transparent Optical Networks (ICTON)).

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

  • Broadband networks
  • Fiber optic networks
  • Erbium doped fiber amplifiers
  • Fibers
• 2017

  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, p. 4809 - 4816

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

  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 proceeding › Conference publication

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

• 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 proceeding › Conference publication

  • pumping
  • prediction

• High gain, flattened, discrete raman fiber amplifier and its transmission performance

  El-Taher, A., Tan, M., Iqbal, M. A., Krzczanowicz, L., Phillips, I. D., Forysiak, W. & Harper, P., 29 Jun 2017, The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Optical Society of America, Vol. Part F82-CLEO_Europe 2017.

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

  • Fiber amplifiers
  • Pumps
  • Fibers
  • Erbium doped fiber amplifiers
  • Wavelength

• Hybrid discrete Raman/EDFA design for broadband optical amplification in metro WDM systems

  Krzczanowicz, L., Phillips, I., Iqbal, M. A., Tan, M., Harper, P. & Forysiak, W., 4 Sep 2017, ICTON 2017 - 19th International Conference on Transparent Optical Networks. IEEE, p. 1-4 4 p. 8025083

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

  Open Access

  File

  • Erbium doped fiber amplifiers
  • Wavelength division multiplexing
  • Amplification
  • Erbium
  • Fibers

• 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

• Mitigating RIN-penalty to enhance the transmission performance in distributed Raman amplification system

  Tan, M., Iqbal, M. A., Turitsyn, S. K. & Harper, P., 17 Nov 2017, 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017. IEEE, Vol. 2017-November. p. 1-3 3 p. (2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)).

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

  Open Access

  File

  • Noise abatement
  • Amplification

• Noise and transmission performance improvement of broadband distributed Raman amplifier using bidirectional Raman pumping with dual order co-pumps

  Iqbal, M. A., Tan, M., Krzczanowicz, L., El-Taher, A., Forysiak, W., Ania-Castañón, J. D. & Harper, P., 24 Oct 2017, In: Optics Express. 25, 22, p. 27533-27542 10 p.

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

  Open Access

  File

  • pumping
  • amplifiers
  • pumps
  • broadband
  • performance

• Optimal balance of RIN and ASE impairments in ultra-long raman laser amplified 10 × 30 GBaud DP-QPSK transmission

  Gallazzi, F., Rizzelli, G., Iqbal, M. A., Tan, M., Harper, P. & Ania-Castaño´n, J. D., 29 Jun 2017, The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Optical Society of America, Vol. Part F82-CLEO_Europe 2017.

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

  • Fiber lasers
  • Quadrature phase shift keying
  • Pumping (laser)
  • Pumps
  • Lasers

• Performance characterization of high gain, high output power and low noise cascaded broadband discrete Raman amplifiers

  Iqbal, M. A., Tan, M., Krzczanowicz, L., Skvortcov, P., El-Taher, A., Philips, I. D., Forysiak, W., Ania-Castanon, J. D. & Harper, P., 4 Sep 2017, ICTON 2017 - 19th International Conference on Transparent Optical Networks. IEEE, 8025082

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

  Open Access

  File

  • Fibers
  • Noise figure

• Performance optimization in ultra-long Raman laser amplified 10x30 GBaud DP-QPSK transmission: Balancing RIN and ASE noise

  Gallazzi, F., Rizzelli, G., Iqbal, M. A., Tan, M., Harper, P. & Ania-Castañón, J. D., 24 Aug 2017, In: Optics Express. 25, 18, p. 21454-21459 6 p.

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

  Open Access

  File

  • aeroservoelasticity
  • Raman lasers
  • quadrature phase shift keying
  • optimization
  • pumps

• Raman fibre laser based amplification in long-haul/unrepeatered coherent transmission systems

  Tan, M., Rosa, P., Iqbal, M. A., Le, S. T., Phillips, I. D., Turitsyn, S. K. & Harper, P., 4 Sep 2017, ICTON 2017 - 19th International Conference on Transparent Optical Networks. IEEE, 8025050

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

  Open Access

  File

  • Fiber lasers
  • Amplification
  • Distributed feedback lasers
  • Fiber Bragg gratings
  • Quadrature phase shift keying

• RIN and transmission performance improvement using second order and broadband first order forward Raman pumping

  Iqbal, M. A., Tan, M., El-Taher, A. & Harper, P., 17 Nov 2017, 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017. IEEE, Vol. 2017-November. p. 1-4 4 p. (2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)).

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

  Open Access

  File

  • Pumps
  • Amplification

• RIN Mitigation and Transmission Performance Enhancement with Forward Broadband Pump

  Tan, M., Rosa, P., Le, S. T., Dvoyrin, V. V., Iqbal, M. A., Sugavanam, S., Turitsyn, S. K. & Harper, P., 16 Dec 2017, In: IEEE Photonics Technology Letters. p. 1-1

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

  Open Access

  File

  • Pumps
  • pumps
  • broadband
  • augmentation
  • Lasers

• RIN-penalty mitigation and transmission performance improvement using forward propagated broadband first order Raman pump

  Tan, M., Iqbal, M. A., Krzczanowicz, L., Phillips, I. D., El-Taher, A., Forysiak, W. & Harper, P., 17 Nov 2017, 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017. IEEE, Vol. 2017-November. p. 1-3 3 p. (2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC)).

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

  Open Access

  File

  • Pumps
  • Quadrature phase shift keying
  • Wavelength division multiplexing
  • Amplification

• RIN reduction technique for dual order forward pumped distributed Raman amplification

  Iqbal, M. A., Tan, M. & Harper, P., 29 Jul 2017, The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Optical Society of America, Vol. Part F82-CLEO_Europe 2017.

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

  • Seed
  • Noise abatement
  • Amplification
  • Signal to noise ratio
  • Pumps

• Ultralong Raman fiber lasers and their applications

  Ania-Castañón, J. D. & Harper, P., Apr 2017, Shaping light in nonlinear optical fibers. Boscolo, S. & Finot, C. (eds.). Chichester (UK): Wiley, p. 435-460 26 p.

  Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed) › peer-review
• 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

• Achievable information rate of nonlinear inverse synthesis based 16QAM OFDM transmission

  Le, S. T., Phillips, I. D., Prilepsky, J. E., Kamalian Kopae, M., Ellis, A. D., Harper, P. & Turitsyn, S. K., 8 Dec 2016, ECOC 2016; 42nd European Conference on Optical Communication. IEEE, p. 1208-1210 3 p.

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

  • Orthogonal frequency division multiplexing

• Amplification schemes and multi-channel DBP for unrepeatered transmission

  Galdino, L., Tan, M., Alvarado, A., Lavery, D., Rosa, P., Maher, R., Ania-Castañón, J. D., Harper, P., Makovejs, S., Thomsen, B. C. & Bayvel, P., 1 May 2016, In: Journal of Lightwave Technology. 34, 9, p. 2221-2227 7 p.

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

  Open Access

  File

  • performance
  • pulse duration modulation
  • fibers
  • erbium
  • parity

• Bi-doped fiber laser for telecom applications

  Dvoyrin, V., Tan, M., Zlenko, A., Mashinsky, V., Melkumov, M., Dianov, E., Harper, P. & Turitsyn, S. K., 16 Dec 2016, CLEO: Science and Innovations 2016. Optical Society of America, paper STu1F.4

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

  • Fiber lasers
  • Amplification
  • fiber lasers
  • pumping

• Demonstration of nonlinear inverse synthesis transmission over transoceanic distances

  Le, S. T., Phillips, I. D., Prilepsky, J. E., Harper, P., Ellis, A. D. & Turitsyn, S. K., 15 May 2016, In: Journal of Lightwave Technology. 34, 10, p. 2459-2466 8 p.

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

  Open Access

  File

  • synthesis
  • combat
  • impairment
  • bit error rate
  • signal processing

• Equalization-enhanced phase noise in nonlinear inverse synthesis transmissions

  Le, S. T., Phillips, I. D., Prilepsky, J. E., Kamalian Kopae, M., Ellis, A. D., Harper, P. & Turitsyn, S. K., 5 Dec 2016, ECOC 2016; 42nd European Conference on Optical Communication. IEEE, p. 370-372 3 p.

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

  • Quadrature phase shift keying
  • Phase noise
  • Orthogonal frequency division multiplexing
  • Modulation

• Evaluation of long-haul coherent transmission performance using low RIN forward Raman pump

  Tan, M., Dvoyrin, V., Iqbal, M. A., Turitsyn, S. K. & Harper, P., 5 Nov 2016, Asia Communications and Photonics Conference 2016. Optical Society of America

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

  • Pumps
  • Bismuth
  • Fiber lasers

• FBG reflectivity impact on RIN in ultralong laser amplifiers

  Rizzelli, G., Iqbal, M. A., Gallazzi, F., Rosa, P., Tan, M., Corredera, P., Ania-Castañón, J. D. & Harper, P., 5 Dec 2016, ECOC 2016; 42nd European Conference on Optical Communication. IEEE, p. 625-627 3 p.

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

  • Light amplifiers
  • Pumps

• 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

• Impact of front-FBG reflectivity in Raman fiber laser based amplification

  Rizzelli, G., Iqbal, M. A., Rosa, P., Tan, M., Krzczanowicz, L., Phillips, I., Forysiak, W., Ania-Castañón, J. D. & Harper, P., 16 Dec 2016, CLEO: Science and Innovations 2016. Optical Society of America, paper SF1F.6

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

  • Fiber lasers
  • Raman lasers
  • Amplification
  • fiber lasers
  • Light amplifiers

• Impact of input FBG reflectivity and forward pump power on RIN transfer in ultralong Raman laser amplifiers

  Rizzelli, G., Iqbal, M. A., Gallazzi, F., Rosa, P., Tan, M., Ania-Castañón, J. D., Krzczanowicz, L., Corredera, P., Phillips, I., Forysiak, W. & Harper, P., 12 Dec 2016, In: Optics Express. 24, 25, p. 29170-29175 6 p.

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

  Open Access

  File

  • Raman lasers
  • amplifiers
  • pumps
  • reflectance
  • quadrature phase shift keying

• Noise performance improvement of broadband distributed raman amplifier using dual order bidirectional pumping

  Iqbal, M. A., Tan, M., Krzczanowicz, L., Rizzelli, G., Gallazzi, F., El-Taher, A., Forysiak, W., Harper, P. & Ania-Castañón, J. D., 5 Nov 2016, Asia Communications and Photonics Conference 2016. Optical Society of America, paper AF4G.2

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

  • Noise figure
  • Amplification

• 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

• Performance improvement of broadband distributed Raman amplifier using bidirectional pumping with first and dual order forward pumps

  Iqbal, M. A., Martella, G. R., Gallazzi, F., Tan, M., Harper, P. & Ania-Castañón, J. D., 25 Aug 2016, 2016 18th International Conference on Transparent Optical Networks (ICTON). Ferrari, M., Dorosz, D. & Marciniak, M. (eds.). IEEE, 4 p. Tu.P.30

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

  Open Access

  File

  • Noise figure
  • Pumps
  • Bandwidth

• Transmission performance improvement using random DFB laser based Raman amplification and bidirectional second-order pumping

  Tan, M., Rosa, P., Le, S. T., Iqbal, M. A., Phillips, I. D. & Harper, P., 8 Feb 2016, In: Optics Express. 24, 3, p. 2215-2221 7 p.

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

  Open Access

  File

  • distributed feedback lasers
  • pumping
  • performance
  • phase conjugation
  • quadrature phase shift keying