Title :
The gain stability of Raman amplifier in WDM system
Author :
Dung, Jeng-Chemg ; Cheng, Han-Yang ; Chi, Sien
Author_Institution :
Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The gain variation of distributed Raman amplifier (DRA) for wavelength-division-multiplexing (WDM) system is demonstrated. Experiments on a six-channel WDM system with DRA show the gain variation of less than 0.05 dB under the situation of dropping channels. It is found that the gain variation arising from the add/drop channels and the change of input signal powers has been improved tremendously in DRA system than EDFA system. Therefore, unlike EDFA system, DRA system requires no technique of gain clamping.
Keywords :
gain control; optical fibre amplifiers; optical fibre communication; optical pumping; stability; telecommunication channels; wavelength division multiplexing; WDM system; add-drop channels; distributed Raman amplifier; dropping channels; gain stability; wavelength-division-multiplexing system; Bandwidth; Clamps; Erbium-doped fiber amplifier; Gain; Power generation; Power measurement; Propagation losses; Stability; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274793
