Title :
Comparison of two-stage L-band EDFAs with gain-clamped characteristics based on three configurations
Author :
Xia, Bing ; Chen, Lawrence R. ; Chan, Peter
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
We have compared three configurations of two-stage L-band Er-doped fibre amplifiers (EDFAs) with gain-clamped characteristics. The results show that for a certain configuration which incorporates a fiber grating laser in the second stage, the best gain-clamping performance (Pcrit=-13 dBm) and the lowest noise figure (≤5 dB) is obtained for the same pumping conditions. Furthermore, we find that the transient power excursion of this configuration is less than those associated with two other configurations.
Keywords :
Bragg gratings; erbium; laser noise; optical communication equipment; optical fibre amplifiers; optical pumping; fiber grating laser; gain-clamped characteristics; gain-clamping performance; noise figure; pumping conditions; second stage; transient power excursion; two-stage L-band EDFAs; two-stage L-band Er-doped fibre amplifiers; Attenuators; Doped fiber amplifiers; Electrons; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Fluctuations; L-band; Laser feedback; Noise figure; Noise measurement;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036619
