DocumentCode
1451329
Title
Effect of interfering echoes in a DPSK coherent optical transmission system with optical amplifiers
Author
Walker, G.R. ; Steele, R.C. ; Walker, N.G.
Author_Institution
British Telecom. Res. Labs., Martlesham Heath, Ipswich, UK
Volume
137
Issue
4
fYear
1990
fDate
8/1/1990 12:00:00 AM
Firstpage
248
Lastpage
254
Abstract
Interfering echoes in semiconductor amplifier cascades can cause severe BER degradations in optical transmission systems. The authors describe an experimental investigation of the effect in a coherent system, and report results in good agreement with theoretical predictions. It is concluded that interfering echoes will severely limit the minimum interamplifier attenuation, which will in turn limit the number of semiconductor laser amplifiers than can be cascaded without optical isolation
Keywords
optical communication equipment; optical links; phase shift keying; semiconductor junction lasers; BER degradations; DPSK coherent optical transmission system; interfering echoes; minimum interamplifier attenuation; optical amplifiers; semiconductor amplifier cascades; semiconductor laser amplifiers;
fLanguage
English
Journal_Title
Optoelectronics, IEE Proceedings J
Publisher
iet
ISSN
0267-3932
Type
jour
Filename
54382
Link To Document