Referenced Items are not available for this document.
The error rates and sensitivity penalties for multichannel coherent optical communications systems are evaluated for amplitude-shift keying (ASK), phase-shift keying (PSK), and frequency-shift keying (FSK) modulation, taking into account adjacent channel interference. Both time-domain and frequency-domain analysis are used, the latter being based on a Gaussian approximation. Both techniques yield similar results for sensitivity penalties below 1 dB. For FSK systems, larger values of the modulation index Δ do not necessarily lead to larger channel spacings. ASK and PSK systems both require larger channel spacings than FSK systems with Δ=1. The study was conducted for sources with linewidths narrow enough so that phase noise does not degrade the performance of receivers with matched filter demodulators
Published in:
Lightwave Technology, Journal of
(Volume:6
,
Issue:
9
)
Date of Publication: Sep 1988
- Page(s):
- 1353 - 1365
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 3270171
- Digital Object Identifier :
- 10.1109/50.7883
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Sep 1988
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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