Title :
Bit-error rate for a lightwave communication system incorporating an erbium-doped fibre amplifier
Author :
Li, Tong ; Teich
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
fDate :
3/28/1991 12:00:00 AM
Abstract :
The photon-number distribution at the output of an erbium-doped fibre amplifier (EDFA) with coherent light at the input is shown to obey the noncentral-negative-binomial (NNB) distribution. The use of this distribution in a binary on/off keying system gives rise to a lower bit-error rate (BER) than the Gaussian distribution, because the tails of these distributions differ (even for large mean input photon numbers).
Keywords :
digital communication systems; erbium; fibre lasers; optical communication equipment; optical fibres; optical links; EDFA; Er 3+-doped fibre; NNB distribution; binary on/off keying system; bit-error rate; coherent light; lightwave communication system; noncentral-negative-binomial; photon-number distribution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910377
