Title :
Broadband flat-noise Raman amplifier using low-noise bidirectionally pumping sources
Author :
Kado, Soko ; Emori, Yoshihiro ; Namiki, Shu ; Tsukiji, Naoki ; Yoshida, Junji ; Kimura, Toshio
Author_Institution :
Firel Photonics Lab., Ichihara, Japan
Abstract :
We propose and experimentally demonstrate an optimised bidirectional pumping scheme that realizes a less than 0.7 dB flatness over C- and L-bands for both Raman gain and optical noise figure, simultaneously. In order to use forward-pumping for the proposed method, a new type of pump laser having low relative intensity noise is also developed.
Keywords :
Raman lasers; optical communication equipment; optical fibre communication; optical noise; optical pumping; wavelength division multiplexing; C-band; L-band; Raman gain; WDM transmission systems; bidirectional pumping; broadband Raman amplifier; flat-noise Raman amplifier; forward-pumping; optical noise figure; pump laser; Broadband amplifiers; L-band; Laser excitation; Laser noise; Low-noise amplifiers; Noise measurement; Optical amplifiers; Optical noise; Pump lasers; Stimulated emission;
Conference_Titel :
Optical Communication, 2001. ECOC '01. 27th European Conference on
Print_ISBN :
0-7803-6705-7
DOI :
10.1109/ECOC.2001.989038
