Open AccessOptical signal to noise ratio monitoring using variable phase difference phase portrait with software synchronization
Author(s) -
Yu Chen
Publication year - 2015
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.23.011284
Subject(s) - optics , synchronization (alternating current) , computer science , signal to noise ratio (imaging) , software , signal (programming language) , phase (matter) , noise (video) , channel (broadcasting) , sampling (signal processing) , electronic engineering , physics , telecommunications , detector , image (mathematics) , engineering , artificial intelligence , quantum mechanics , programming language
In this paper, a novel optical signal to noise ratio (OSNR) monitoring method using 2-dimension (2-D) phase portrait is proposed and demonstrated, which is generated by using a single low-speed sampling channel with software synchronization technique. Moreover, variable phase difference is proposed to generate the X-Y pairs, which increases the tolerance of synchronization accuracy significantly. This method is a cost effective solution with simple system setup.