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利用国产１．４８μｍ泵浦ＬＤ和优质掺铒光纤，实验研究了掺饵光纤放大器的基本工作特性和结构设计，研制了一种掺铒光纤放大器，小信号净增益２８ｄＢ，噪声指数５．１ｄＢ，增益谱宽大于２０ｎｍ，饱和输出功率和最大输出功率分别达４．８ｄＢｍ和１１ｄＢｍ．
Using the domestic LD pump of 1.48μm and high quality erbium - doped fiber, the basic working characteristics and structure design of the erbium - doped fiber amplifier were experimentally studied. An erbium - doped fiber amplifier was developed with a net gain of 28dB and a noise figure of 5.1dB. Gain spectrum width greater than 20nm, saturated output power and maximum output power of 4.8dBm and 11dBm respectively.