Open AccessDistributed phase-sensitive amplification
Author(s) -
Michael Vasilyev
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.007563
Subject(s) - optics , optical amplifier , raman amplification , amplified spontaneous emission , amplifier , phase (matter) , phase noise , transmission (telecommunications) , limit (mathematics) , materials science , computer science , physics , optoelectronics , telecommunications , laser , mathematics , cmos , quantum mechanics , mathematical analysis
We propose a phase-sensitive amplifier scheme that balances fiber loss and parametric gain everywhere in a fiber span. We show that, for long links, such a distributed phase-sensitive amplifier has a 3-dB lower noise figure than an ideal distributed phase-insensitive amplifier (e.g. Raman), even if simple direct detection is employed. This sets the ultimate limit for the optimum noise-nonlinearity trade-off in transmission systems.