Title :
On the Gaussianly-distributed Q-factor in optical communication systems
Author :
Song, Slroxian ; Bhatnagar, Vishal ; Livas, Jeff
Author_Institution :
CIENA Corp., Linthicum, MD, USA
Abstract :
We show that the average-Q method may bring significant error on BER if the Q variations are mainly caused by system performance fluctuations. A new Q-function with an effective Q-factor was derived and evaluated by assuming measured Q values followed a Gaussian distribution. Results showed that traditional Q-function with average Q values underestimate the system BER. In the system design point of view, this implies that margins need to be left on the measured average Q to achieve specific bit error-rates
Keywords :
Gaussian distribution; Q-factor; multiwave mixing; optical fibre communication; wavelength division multiplexing; BER; Gaussian distribution; Gaussianly-distributed Q-factor; Q variations; average Q values; average-Q method; bit error-rates; effective Q-factor; measured average Q; optical communication systems; system design; system performance fluctuations; Error analysis; Fluctuations; Gaussian processes; Histograms; Optical crosstalk; Optical fiber communication; Optical mixing; Q factor; Q measurement; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.893886
