DocumentCode
962426
Title
565 Mbit/s AMI FSK coherent system using commercial DFB lasers
Author
Steele, R.C.
Author_Institution
British Telecom Res. Labs., Ipswich, UK
Volume
25
Issue
11
fYear
1989
fDate
5/25/1989 12:00:00 AM
Firstpage
732
Lastpage
734
Abstract
Alternate mark invert (AMI) encoding is shown to overcome the low-frequency nonlinear FM response of DFB lasers. Results from an experimental heterodyne system are presented where the local oscillator (LO) and the signal carrier are at nearly the same frequency. This has the same sensitivity in theory as an ideal single-filter FSK detection system and offers the advantage of a compact optical spectrum when used in FDM systems.
Keywords
digital communication systems; distributed feedback lasers; encoding; error statistics; frequency shift keying; optical links; semiconductor junction lasers; 565 Mbit/s; AMI encoding; BER; FDM systems; FSK coherent system; alternate mark invert; bit error rate; commercial DFB lasers; compact optical spectrum; frequency shift keying; heterodyne system; low-frequency nonlinear FM response; optical links;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19890496
Filename
24108
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