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在光纤放大器内部同时建立增益谱锁定与平坦机制，研制出适合ＷＤＭ网络应用的全光锁定高增益、大功率掺铒光纤放大器（ＥＤＦＡ）。在２３ｄＢ输入功率动态范围（－４０～－１７ｄＢｍ）内的增益箝制在３３ｄＢ，对应总输入功率为－１７ｄＢｍ的输出光功率为１６ｄＢｍ，锁定的－１ｄＢ增益带宽为１４ｎｍ（１５４７～１５６１ｎｍ）。
In the optical fiber amplifier, both the gain spectrum locking and the flattening mechanism are established at the same time, and an all-optical locking high-gain and high-power erbium-doped fiber amplifier (EDFA) suitable for WDM network applications is developed. The gain is clamped to 33 dB at a dynamic range of 23 dB input power (-40 to -17 dBm) and 16 dBm at a total input power of -17 dBm. The locked -1 dB gain bandwidth is 14 nm (1547 to 1561 nm).