DocumentCode
62423
Title
Narrow optical filtering in phase modulated communication links
Author
Shapiro, E.G. ; Shapiro, D.A.
Author_Institution
Inst. of Autom. & Electrometry, Novosibirsk, Russia
Volume
49
Issue
4
fYear
2013
fDate
Feb. 14 2013
Firstpage
279
Lastpage
281
Abstract
Two variants of differential phase-shift keying with π and π/2 shifts are compared theoretically. The expressions are derived for dispersion averaged over all the realisations of the bit sequence. It is shown that in the presence of strong optical filtering the π/2 scheme yields less dispersion of pulses and much better Q-factor in agreement with the experiment. The inequality is confirmed by numerical calculation.
Keywords
Q-factor; differential phase shift keying; optical fibre communication; optical filters; phase modulation; Q-factor; bit sequence; differential phase-shift keying; optical filtering; phase modulated communication links;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.3625
Filename
6464686
Link To Document