Low transmission penalty dual-stage broadband discrete Raman amplifier

Lukasz Krzczanowicz, Md Asif Iqbal, Ian D Phillips, Mingming Tan, Pavel Skvortcov, Paul Harper, Wladek Forysiak

Research output: Contribution to journalArticlepeer-review


We present a broadband (>70nm), dual stage, discrete Raman amplifier designed with small and standard core fibres to maximize gain and minimize nonlinearity. The amplifier provides ~19.5dB net gain, 22.5dBm saturation output power and a noise figure of <7.2dB. 120Gb/s DP-QPSK transmission over 38x80km at a pre-FEC BER <3.8x10−3 is demonstrated.
Original languageEnglish
Pages (from-to)7091-7097
JournalOptics Express
Issue number6
Publication statusPublished - 8 Mar 2018

Bibliographical note

© 2018 OSA. 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.

Funding: EPSRC project EP/M009092/1 (ToM3), FP7 ITN ICONE (No. 608099).


  • Fiber optics amplifiers and oscillators, Lasers, Raman, Coherent communications


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