DocumentCode
1099888
Title
Sensitivity of an optical heterodyne receiver in presence of an optical preamplifier
Author
Glance, B. ; Eisenstein, Gadi ; Fitzgerald, P.J. ; Pollock, K.J. ; Raybon, G.
Author_Institution
AT&T Bell Labs., Holmdel, NJ
Volume
24
Issue
19
fYear
1988
fDate
9/15/1988 12:00:00 AM
Firstpage
1229
Lastpage
1230
Abstract
The effect of an optical preamplifier on the sensitivity of a heterodyne receiver near the shot noise limit is measured. Without the preamplifier, the sensitivity of the receiver is 76 photons/bit for an FSK modulated signal at 45 Mbit/s received with a BER of 10-9 (2.8 dB from the shot noise limit). Optical preamplification degrades this sensitivity by 9.6 dB. The degradation expected from the amplifier spontaneous emission noise is shown to be very close to the measured value
Keywords
digital communication systems; frequency shift keying; noise; optical communication; optical communication equipment; preamplifiers; receivers; sensitivity; 45 Mbit/s; FSK modulated signal; digital transmission; optical communication; optical heterodyne receiver; optical preamplifier; sensitivity; shot noise limit; spontaneous emission noise;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
Filename
29177
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