Open AccessFiber-based all-optical regeneration of DPSK signals degraded by transmission in a fiber
Author(s) -
Masayuki Matsumoto,
Yasutaka Morioka
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.006913
Subject(s) - optics , signal (programming language) , materials science , amplified spontaneous emission , phase noise , transmission (telecommunications) , optical fiber , degradation (telecommunications) , dispersion shifted fiber , regenerative heat exchanger , optical amplifier , self phase modulation , noise (video) , nonlinear optics , fiber optic sensor , physics , telecommunications , computer science , laser , image (mathematics) , thermodynamics , programming language , heat exchanger , artificial intelligence
An experiment of all-optical regeneration of short-pulse differential phase-shift keying (DPSK) signals using fiber nonlinearity is reported. Bit error rate (BER) performance is measured for a two-span transmission system where the regenerator is inserted between the spans. Two cases are examined where the signal degradation before the regenerator is due mainly to nonlinearity of the transmission fiber, i.e., the nonlinear phase noise, and is due to addition of amplified spontaneous emission (ASE). The regenerator is shown to be more effective in recovering signal quality in the former case of degradation due to phase noise.