Open AccessDispersion insensitive optical signal to noise ratio monitoring of PDM signal by using uncorrelated signal power
Author(s) -
Yu Chen
Publication year - 2014
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.22.012823
Subject(s) - optics , polarization division multiplexing , polarization mode dispersion , signal (programming language) , physics , bandwidth (computing) , signal to noise ratio (imaging) , signal processing , multiplexing , time domain , phase shift keying , optical power , dispersion (optics) , wavelength division multiplexing , computer science , telecommunications , bit error rate , channel (broadcasting) , wavelength , laser , computer vision , programming language , radar
In this paper, we propose and demonstrate optical signal to noise ratio (OSNR) monitoring method for polarization-division-multiplexing (PDM) signal by using the uncorrelated signal power, which is generated by balanced subtraction in electrical domain. The proposed OSNR monitoring is insensitive to dispersion impairment by using low bandwidth receiver. The proposed OSNR monitoring method is tested from 5 dB to 27.5 dB in 100-Gb/s PDM-QPSK system experimentally.