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

Giuseppe Rizzelli*, Md Asif Iqbal, Francesca Gallazzi, Paweł Rosa, Mingming Tan, Juan Diego Ania-Castañón, Lukasz Krzczanowicz, Pedro Corredera, Ian Phillips, Wladek Forysiak, Paul Harper

*Corresponding author for this work

Research output: Contribution to journalArticle


Relative intensity noise transfer from the pump to the signal in 2nd-order ultra-long Raman laser amplifiers for telecommunications is characterized numerically and experimentally. Our results showcase the need for careful adjustment of the front FBG reflectivity and the relative contribution of forward pump power, and their impact on performance. Finally, our analysis is verified through a 10 x 30 GBaud DP-QPSK transmission experiment, showing a large Q factor penalty associated with the combination of high forward pumping and high reflectivities.

Original languageEnglish
Pages (from-to)29170-29175
Number of pages6
JournalOptics Express
Issue number25
Early online date8 Dec 2016
Publication statusPublished - 12 Dec 2016


Bibliographical note

© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

Funding: FP7 ITN programme ICONE (608099); MSCA-IF ’CHAOS’ (658982); Spanish MINECO grant ANOMALOS (TEC2015-71127-C2); Comunidad de Madrid grant SINFOTON (S2013/MIT-2790-SINFOTON-CM); EPSRC (UNLOC EP/J017582/1).

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