Chinese Journal of Lasers B, 1997, 6 (2): 97, 网络出版: 2006-10-31  

Characteristics of the bandwidth in gain-clamped erbium-doped fiber amplifiers

Characteristics of the bandwidth in gain-clamped erbium-doped fiber amplifiers
作者单位
Dept. of Electronic Engineering, Tsinghua University, Beijing 100084
摘要
Abstract
A new method for determining the gain pro files in gain-clamped erbiumdoped fiber amplifier(EDFAs) is propsed. Analytical model for gain profiles is complately characterized from easily measuted perameters at only one signal wavelength: erbium-doping abeorption cocfficient, background loss coefficient, and temperature. It is shown that results predicted from the model agtee well with the experiment data, confirming the validity of the theoretical model. Using this model, we analyze the effects of the lasing wavelengths and the cavity losses on amplifier bandwidth in gain-clamped EDFAs. It is found that lasing wavelengths and cavity losses have a great influence on the amplifier bandwidth for Er-doped gemano-aluminosilcate fiber with high Al concentration and have no effects for Er-doped germanosilicate fiber.

CHEN Zhihao, PENG Jiangde, ZHOU Bingkun. Characteristics of the bandwidth in gain-clamped erbium-doped fiber amplifiers[J]. Chinese Journal of Lasers B, 1997, 6(2): 97. CHEN Zhihao, PENG Jiangde, ZHOU Bingkun. Characteristics of the bandwidth in gain-clamped erbium-doped fiber amplifiers[J]. 中国激光(英文版), 1997, 6(2): 97.

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