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ID 113285
Title Alternative
OPTICAL QPSK SIGNAL QUALITY DEGRADATION DUE TO PHASE ERROR OF PUMP LIGHT
Author
Kimura, Takeshi Tokushima University
Keywords
phase-sensitive optical amplifier repeaters
pump phase error
phase-conjugated twin waves
Content Type
Journal Article
Description
The influence of pump phase error on phase-sensitive optical amplifier (PSA) repeaters and the waveform degradation due to chromatic dispersion and fiber nonlinearities in the optical multi-relay transmission of quadrature phase-shift keying phase-conjugated twin waves are considered theoretically. First, the influence of noise from the pump phase error, optical local oscillator, receiver, and the amplified spontaneous-emission (ASE) in PSA repeaters is investigated with the assumption that transmission fibers are linear lossy channels. The bit-error rate (BER) is estimated as a function of the signal-to-noise ratio, and the relationship between the number of transmission relays and the fiber launch power is clarified. Waveform degradation due to chromatic dispersion and the optical fiber nonlinearities in transmission fibers are investigated with the noiseless condition, and the maximum repeatable number as a function of the fiber launch power is calculated. Finally, we show the relationship among the maximum repeatable number, standard deviation of pump phase error in PSA repeaters, and the fiber launch power to clarify the optimum transmission condition with consideration of the noise and the waveform degradation.
Journal Title
IEICE Transactions on Communications
ISSN
17451345
Publisher
The Institute of Electronics, Information and Communication Engineers
Volume
E102-B
Issue
4
Start Page
810
End Page
817
Published Date
2019-04-01
Remark
IEICE Transactions Online TOP:http://search.ieice.org/
Rights
©2019 The Institute of Electronics, Information and Communication Engineers
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Science and Technology