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Optical Fiber Telecommunications VB, 5th Edition
book

Optical Fiber Telecommunications VB, 5th Edition

by Ivan Kaminow, Tingye Li, Alan E. Willner
July 2010
Intermediate to advanced content levelIntermediate to advanced
928 pages
33h 42m
English
Academic Press
Content preview from Optical Fiber Telecommunications VB, 5th Edition
integer multiple of the symbol duration to provide clean interference properties.
Due to stability reasons, one almost exclusively chooses a demodulation delay of a
single symbol period.
8
If both signal quadratures (I and Q) are to be detected, a
second interferometer with 90 shifted interference properties is typically used, in
analogy to a 90 hybrid in coherent detection.
If a phase modulation format is detected differentially, i.e., by delay demodula-
tion, one generally speaks of differential phase shift keying (DPSK), although the
word “differential” characterizes the detection technique and not the format itself.
From a strict modulation format ...
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Publisher Resources

ISBN: 9780123741721