Title :
Reduction of bit error rate performance deterioration caused by stimulated Brillouin scattering in high-power CPFSK coherent optical transmission systems
Author :
Ohkawa, Naoyoshi ; Hayashi, Yasuhiro
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa
fDate :
3/17/1994 12:00:00 AM
Abstract :
The characteristic phenomena of demodulated waveform distortion and bit error rate (BER) performance deterioration caused by stimulated Brillouin scattering (SBS) in CPFSK coherent optical transmission systems with erbium doped optical fibre booster amplifiers are investigated for the first time, experimentally. The effectiveness of reducing the BER deterioration by adjusting the threshold voltage bias of the decision circuit in a 2.5 Gbit/s heterodyne receiver is clarified
Keywords :
digital communication systems; error statistics; fibre lasers; frequency shift keying; optical fibres; optical links; stimulated Brillouin scattering; 2.5 Gbit/s; BER performance deterioration; CPFSK coherent optical transmission systems; Er doped optical fibre; SBS; bit error rate; decision circuit; demodulated waveform distortion; heterodyne receiver; high-power optical transmission; optical fibre booster amplifiers; optical fibre links; stimulated Brillouin scattering; threshold voltage bias;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940369
