Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

Md Asif Iqbal; Gabriele Di Rosa; Lukasz Krzczanowicz; Ian Phillips; Paul Harper; André Richter; Wladek Forysiak

doi:10.1364/OE.392258

Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

Md Asif Iqbal, Gabriele Di Rosa, Lukasz Krzczanowicz, Ian Phillips, Paul Harper, André Richter, Wladek Forysiak

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

Abstract

We experimentally investigate the impact of pump-signal overlap in ultra-wideband (>13THz) Raman amplifiers and measure the transmission penalty on 30GBaud PM-QPSK signals due to adjacent Raman pumps in a 15dB gain, 150nm (∼18.8THz) S+C+L-band discrete Raman amplifier. We present an efficient numerical model to predict the performance penalty induced by crosstalk from Rayleigh backscattered light from backward-propagating Raman pumps showing good agreement with the experimental results. A 4nm guard-band must be retained around an overlapping Raman pump based on typical, commercial semiconductor laser pump diodes to ensure a negligible transmission penalty in S-band

Original language	English
Article number	18440
Pages (from-to)	18440-18448
Number of pages	9
Journal	Optics Express
Volume	28
Issue number	12
DOIs	https://doi.org/10.1364/OE.392258
Publication status	Published - 5 Jun 2020

Bibliographical note

Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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10.1364/OE.392258Licence: CC BY 3.0

Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers
Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Final published version, 1.33 MBLicence: CC BY 3.0

Cite this

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abstract = "We experimentally investigate the impact of pump-signal overlap in ultra-wideband (>13THz) Raman amplifiers and measure the transmission penalty on 30GBaud PM-QPSK signals due to adjacent Raman pumps in a 15dB gain, 150nm (∼18.8THz) S+C+L-band discrete Raman amplifier. We present an efficient numerical model to predict the performance penalty induced by crosstalk from Rayleigh backscattered light from backward-propagating Raman pumps showing good agreement with the experimental results. A 4nm guard-band must be retained around an overlapping Raman pump based on typical, commercial semiconductor laser pump diodes to ensure a negligible transmission penalty in S-band",

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AU - Iqbal, Md Asif

AU - Di Rosa, Gabriele

AU - Krzczanowicz, Lukasz

AU - Phillips, Ian

AU - Harper, Paul

AU - Richter, André

AU - Forysiak, Wladek

N1 - Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

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The impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

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Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

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The impact of pump-signal overlap in S+C+L band discrete Raman amplifiers

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