Title :
Noise characteristics of polarisation sensitive optically preamplified receivers
Author :
Cunningham, David G. ; White, Ian H.
Author_Institution :
Hewlett Packard Labs., Bristol, UK
Abstract :
Using a new expression for the noise variance of optically amplified systems it is shown that the theoretical SNR degradation caused by uncontrolled polarisation at the input to optically preamplified receivers is minimal for gain sensitivities less than 4 dB. This result is experimentally confirmed.
Keywords :
distributed feedback lasers; electron device noise; optical communication equipment; receivers; semiconductor junction lasers; gain sensitivities; noise characteristics; noise variance; optical receivers; optically amplified systems; optically preamplified receivers; polarisation sensitive optically preamplified receivers; semiconductor optical preamplifiers; uncontrolled polarisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901038
