Title :
A supervisory channel scheme for EDFA transmission systems that uses Brillouin amplification
Author :
Sato, Yoshiaki ; Yamabayashi, Yoshiaki ; Aoyama, Koh-ichi
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
10/1/1993 12:00:00 AM
Abstract :
A supervisory (SV) signal transmission channel scheme that makes use of fiber Brillouin amplification is proposed for Er-doped fiber amplifier (EDFA) transmission systems. In the scheme, the forward line signal pumps the backward SV signal through Brillouin amplification. The scheme is realized by combining a new type of EDFA repeater based on circulators and an optical frequency scanning technique that ensures the SV signal frequency falls within the narrow Brillouin gain band. Bidirectional transmission over a 130 km transmission line is confirmed by successfully measuring the bit error rates of the 2.4 Gb/s line signal and the 5 kb/s SV signal
Keywords :
erbium; fibre lasers; optical links; optical pumping; repeaters; stimulated Brillouin scattering; 130 km; 2.4 Gbit/s; 5 kbit/s; Brillouin amplification; EDFA repeater; EDFA transmission systems; Er-doped fiber amplifier; backward SV signal; bidirectional transmission; bit error rates; circulators; fiber Brillouin amplification; forward line signal; narrow Brillouin gain band; optical frequency scanning technique; signal transmission channel scheme; supervisory channel scheme; Erbium-doped fiber amplifier; Fiber nonlinear optics; Frequency; Nonlinear optics; Optical pumping; Optical scattering; Optical transmitters; Power transmission lines; Repeaters; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
