Impact of pump-signal overlap in S+C+L band discrete Raman amplifiers
Year: 2020
Type: article
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.
Source: Optics Express
DOI: 10.1364/oe.392258
Language: English
Topic: Optical Network Technologies
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Awards: G2189472788, G5045220161, Wideband Optical Networks, G6871554678, Towards Manufacturing of "Massive WDM" Metro (ToM3), Verbundprojekt: Optimierte Kapazität in optischen Netzen - OptiCON -, Teilvorhaben: Modellierung und Design von breitbandigen optischen Netzen und verwendeten Ressourcen, G8121786638
OpenAlex ID: W3015808068