Title :
Fast on-line OSNR measurements based on polarisation-nulling method with downhill simplex algorithm
Author :
Floridia, C. ; de Moraes, J.C.
Author_Institution :
CPqD Found., Campinas
Abstract :
A fast on-line OSNR measurement technique which uses the downhill simplex algorithm as a minimum finder is proposed and tested in CW signals for different OSNR levels with excellent agreement. The method is shown to be stable after 8 h of uninterrupted operation and is not affected by environmental temperature change during the test.
Keywords :
optical fibre networks; optical fibre polarisation; wavelength division multiplexing; CW signal; WDM network; downhill simplex algorithm; minimum finder; online OSNR measurement technique; polarisation-nulling method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081201
