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首页> 外文期刊>IEEE Photonics Technology Letters >A low-noise and gain-flattened amplifier composed of a silica-based and a fluoride-based Er/sup 3+/-doped fiber amplifier in a cascade configuration
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A low-noise and gain-flattened amplifier composed of a silica-based and a fluoride-based Er/sup 3+/-doped fiber amplifier in a cascade configuration

机译:一种低噪声,增益平坦的放大器,由二氧化硅和氟化物的Er / sup 3 +/-掺杂光纤放大器级联构成

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摘要

We propose a novel low noise and gain-flattened Er/sup 3+/-doped fiber amplifier (EDFA) with a cascade configuration for wavelength division multiplexing (WDM) signals. In this configuration, a 1480-nm pumped fluoride-based EDFA is joined to a 980-nm pumped silica-based EDFA through an optical isolator. By adjusting the silica-based Er/sup 3+/-doped fiber length in the silica-based EDFA, we realized an excellent flat gain EDFA with a gain excursion of less than 0.9 dB and noise figure of 5.7/spl plusmn/0.2 dB, and a low noise EDFA with a noise figure of 5/spl plusmn/0.2 dB and a gain excursion of less than 1.4 dB, for 8 channel WDM signal in the 1532-1560-nm wavelength region.
机译:我们提出了一种新颖的低噪声,增益平坦的Er / sup 3 +/-掺杂光纤放大器(EDFA),具有级联配置,用于波分复用(WDM)信号。在此配置中,通过光学隔离器将1480 nm泵浦氟化物基EDFA与980 nm泵浦二氧化硅基EDFA连接。通过调整硅基EDFA中的硅基Er / sup 3 +/-掺杂光纤长度,我们实现了出色的平坦增益EDFA,增益偏移小于0.9 dB,噪声系数为5.7 / spl plusmn / 0.2 dB ,以及在1532-1560 nm波长范围内的8通道WDM信号的低噪声EDFA,其噪声系数为5 / spl plusmn / 0.2 dB,增益偏移小于1.4 dB。

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