Bit-dependent degradation caused by stimulated Brillouin scattering in CPFSK coherent optical repeaterless systems with booster amplifiers

Author

Ohkawa, Norio ; Hayashi, Yoshihiro

Author_Institution

NTT Opto-Electron. Labs., Kanagawa, Japan

Volume

13

Issue

5

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

914

Lastpage

922

Abstract

An interesting phenomenon due to stimulated Brillouin scattering (SBS) is experimentally found in a CPFSK heterodyne system with a booster amplifier. We find that the demodulated waveform amplitudes of just a few distinguished bits are strongly suppressed leading to a significant increase in BER. It is confirmed that the BER degradation can be reduced by adjusting the threshold voltage bias of the receiver decision circuit

Keywords

Brillouin spectra; demodulation; frequency shift keying; optical fibre communication; optical modulation; optical receivers; optical transmitters; stimulated Brillouin scattering; BER degradation; CPFSK coherent optical repeaterless systems; CPFSK heterodyne system; SBS; bit-dependent degradation; booster amplifiers; demodulated waveform amplitudes; receiver decision circuit; stimulated Brillouin scattering; threshold voltage bias; Bit error rate; Brillouin scattering; Degradation; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical receivers; Optical scattering; Optical transmitters; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.387809

Filename

387809