Title :
Systems aspects of Raman fibre amplifiers
Author :
Spirit, D.M. ; Blank, L.C. ; Davey, S.T. ; Williams, D.L.
Author_Institution :
British Telecom Res. Labs., Martlesham Heath, Ipswich, UK
fDate :
8/1/1990 12:00:00 AM
Abstract :
Two distinct operating regimes for Raman amplification are identified. In the first case, distributed Raman gain in standard system fibre is used to improve the end-to-end system performance, as demonstrated with the reduction of the loss of a 100 km link of dispersion-shifted fibre from 21 dB to only 13 dB. In the second case, high index difference small core optical fibres have been developed for use as discrete Raman amplifiers, such as transmitter power amplifiers in transmission systems. The saturation performance of the amplifier has been investigated and shows promise for high efficiency high power operation
Keywords :
Raman lasers; fibre optics; optical communication equipment; optical losses; optical saturation; solid lasers; 100 km; 100 km link; 21 to 13 dB; Raman amplification; Raman fibre amplifiers; discrete Raman amplifiers; dispersion-shifted fibre; distributed Raman gain; efficiency high power operation; end-to-end system performance; high index difference small core optical fibres; loss reduction; operating regimes; saturation performance; standard system fibre; systems aspects; transmission systems; transmitter power amplifiers;
Journal_Title :
Optoelectronics, IEE Proceedings J
