Phase-sensitive amplifier link with distributed Raman amplification

We demonstrate long-haul transmission using a hybrid amplifier approach combining distributed Raman amplification and lumped phase-sensitive amplification. Aside from the well-known resulting SNR improvement, distributed Raman amplification is included in an effort to improve the nonlinearity mitiga...

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Published inOptics express Vol. 26; no. 16; pp. 19854 - 19863
Main Authors Eliasson, Henrik, Vijayan, Kovendhan, Foo, Benjamin, Olsson, Samuel L I, Astra, Egon, Karlsson, Magnus, Andrekson, Peter A
Format Journal Article
LanguageEnglish
Published United States 06.08.2018
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Summary:We demonstrate long-haul transmission using a hybrid amplifier approach combining distributed Raman amplification and lumped phase-sensitive amplification. Aside from the well-known resulting SNR improvement, distributed Raman amplification is included in an effort to improve the nonlinearity mitigation capability of the phase-sensitive amplifiers. When changing from phase-insensitive operation to phase-sensitive operation in a link employing distributed Raman amplification, the transmission reach at BER = 10 is increased from 15 to 44 spans of length 81 km while simultaneously increasing the optimal launch power by 2 dB.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.019854