Title :
Ultra-wideband hybrid amplifier comprising distributed Raman amplifier and erbium-doped fibre amplifier
Author :
Masuda, H. ; Kawai, S. ; Aida, K.
Author_Institution :
NTT Opt. Network Syst. Lab., Kanagawa, Japan
fDate :
6/25/1998 12:00:00 AM
Abstract :
An extremely large seamless flat-gain bandwidth of 90.5 nm (1556.0-1646.5 nm) and transparent-gain bandwidth of 108 nm (1540.0-1648.0 nm) for a 50 km transmission fibre are achieved using a novel hybrid amplifier. The amplifier comprises a low-noise distributed Raman amplifier pumped with dual wavelengths and an erbium-doped fluoride fibre amplifier
Keywords :
Raman lasers; broadband networks; erbium; fibre lasers; laser noise; optical communication equipment; optical crosstalk; optical pumping; 1540 to 1648 nm; 1556 to 1646.5 nm; 50 km; Er-doped fluoride fibre amplifier; distributed Raman amplifier; dual wavelengths; erbium-doped fibre amplifier; extremely large seamless flat-gain bandwidth; laser pumping; low-noise distributed Raman amplifier; novel hybrid amplifier; transmission fibre; transparent-gain bandwidth; ultra-wideband hybrid amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980935
