Open AccessNonlinear phase noise mitigation in phase-sensitive amplified transmission systems
Author(s) -
Samuel L. I. Olsson,
Magnus Karlsson,
Peter A. Andrekson
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.011724
Subject(s) - phase noise , optics , phase shift keying , amplifier , transmission (telecommunications) , physics , noise (video) , bit error rate , transmitter , keying , optical amplifier , span (engineering) , quantum noise , quadrature amplitude modulation , sensitivity (control systems) , amplified spontaneous emission , electronic engineering , computer science , telecommunications , optoelectronics , engineering , laser , channel (broadcasting) , civil engineering , cmos , quantum mechanics , artificial intelligence , image (mathematics) , quantum
We investigate the impact of in-line amplifier noise in transmission systems amplified by two-mode phase-sensitive amplifiers (PSAs) and present the first experimental demonstration of nonlinear phase noise (NLPN) mitigation in a modulation format independent PSA-amplified transmission system. The NLPN mitigation capability is attributed to the correlated noise on the signal and idler waves at the input of the transmission span. We study a single-span system with noise loading in the transmitter but the results are expected to be applicable also in multi-span systems. The experimental investigation is supported by numerical simulations showing excellent agreement with the experiments. In addition to demonstrating NLPN mitigation we also present a record high sensitivity receiver, enabled by low-noise PSA-amplification, requiring only 4.1 photons per bit to obtain a bit error ratio (BER) of 1 × 10(-3) with 10 GBd quadrature phase-shift keying (QPSK) data.