The implement applications of erbium doped fiber amplifier (EDFA) and fiber Raman amplifier (FRA) make the launching power in optical fiber communications systems increased significantly.

掺铒光纤放大器(EDFA)和拉曼放大器(FRA)的使用，使得光纤通信系统中的入纤功率有了很大的提高。

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This paper introduces the technologies of remote pumped erbium-doped optical fiber amplifier, remote pumped optical fiber pre -amplifier, Raman noise filtering and forward error correction used in G.

文章介绍了采用远泵掺铒光纤功率放大技术、远泵掺铒光纤前置放大技术、拉曼噪声抑制技术和前向误码纠错等技术，工程上常用的G。

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With the WDM (wavelength Division Multiplexing) technology based on EDFA (Erbium Doped fiber Amplifier) developing, it is possible to use multiple wavelengths to transmit over the same optical fiber.

基于掺铒光纤放大器(EDFA)的波分复用技术(WDM)的出现，使得在同一根光纤中能传输多个波长的光波信号。

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