Noise suppression of erbium-ytterbium co-doped fiber amplifier through annealing effects

Yan Baoluo; Liu Haifeng; Liu Bo; Lin Wei; Liu Jianguo; Zhang Hao; Li Changjin; Li Xiaolong; Wang Yujia

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Noise suppression of erbium-ytterbium co-doped fiber amplifier through annealing effects

机译：通过退火效应的铒-ytterbium共掺杂纤维放大器的噪声抑制

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In the past few years, although annealing effects have been widely used to restore the power features of fiber amplifiers, their noise feature has not yet been sufficiently investigated. Thanks to the recovery of partial color centers (especially the Yb2+ center) through photobleaching, the absorption of seed signal light due to the presence of color centers is weakened, and the sensitized path of the irradiated erbium-ytterbium co-doped fiber amplifier (EYDFA) is partially restored, which helps to suppress amplified spontaneous emission as well as increases the gain of the EYDFA. The thermal annealing process is performed by the first amplification stage of the EYDFA, and the increase in the optical signal-to-noise ratio of the signal light indicates that our proposed scheme could be also exploited to further improve the output performance of the EYDFA. This work is anticipated to open up new prospects for future optical communications systems based on pre-amplification technology. (C) 2019 Optical Society of America

机译：在过去几年中，尽管退火效果已被广泛用于恢复光纤放大器的功率特征，但它们的噪声功能尚未充分研究。由于通过光漂白来恢复部分颜色中心（特别是YB2 +中心），因此削弱了由于彩色中心存在引起的种子信号光的吸收，并且辐照erTerbium共掺杂光纤放大器的敏化路径（Eydfa ）部分恢复，有助于抑制放大的自发发射，并增加EYDFA的增益。热退火处理由EYDFA的第一放大阶段执行，并且信号光的光学信噪比的增加表明我们的所提出的方案也可以利用以进一步提高EYDFA的输出性能。预计这项工作将对基于预放大技术的未来光通信系统开辟新的前景。（c）2019年光学学会

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来源
《Applied optics》 |2019年第32期|共7页
作者
Yan Baoluo; Liu Haifeng; Liu Bo; Lin Wei; Liu Jianguo; Zhang Hao; Li Changjin; Li Xiaolong; Wang Yujia;
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作者单位

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Chinese Acad Sci Inst Semicond State Key Lab Integrated Optoelect Beijing 100083 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

Nankai Univ Inst Modern Opt Tianjin Key Lab Optoelect Sensor &

Sensing Networ Tianjin 300350 Peoples R China;

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Noise suppression of erbium-ytterbium co-doped fiber amplifier through annealing effects

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