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基于腔内光放大器结构的光纤激光器噪声抑制方法

Intensity Noise Reduction of Fiber Laser via Intracavity SOA Structure

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摘要

设计了一种将半导体光放大器耦 合于光纤激光器腔内的结构,以抑制光纤激光器的相对强 度噪声。基于半导体光放大器的增益饱和效应,将光纤 激光器在弛豫振荡峰处的相对强度噪声抑制了30 dB。更进 一步地,通过腔内的放大器结构使得放大器内部的光学 强度达到一个稳定态,最终使得激光器的频率噪声没有因 光放大器的加入而产生劣化。

Abstract

To suppress the relative intensity noise (RIN) of fiber DFB lasers, a structure which couples a semiconductor optical amplifier (SOA) into a fiber laser cavity is designed. On the basis of the gain saturation effect of the SOA, 30 dB RIN of the fiber laser at the relaxation oscillation frequency is suppressed. Furthermore, the optical intensity inside the SOA reaches a balanced state via the intracavity SOA structure. Finally, the frequency noise of the laser does not degrade with the addition of the SOA.

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中图分类号:TP7

DOI:10.3969/j.issn.1672-8785.2017.03.004

所属栏目:研究论文

收稿日期:2017-02-20

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作者单位    点击查看

应康:中国科学院上海光学精密机械研究所,上海 201800
陈迪俊:中国科学院上海光学精密机械研究所,上海 201800
魏芳:中国科学院上海光学精密机械研究所,上海 201800
蔡海文:中国科学院上海光学精密机械研究所,上海 201800
瞿荣辉:中国科学院上海光学精密机械研究所,上海 201800

联系人作者:应康(yingk0917@siom.ac.cn)

备注:应康(1987-),男,浙江嘉兴人,助理研究员,主要研究方向为单频激光器和光纤时频传递。

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引用该论文

YING Kang,CHEN Di-jun,WEI Fang,CAI Hai-wen,QU Rong-hui. Intensity Noise Reduction of Fiber Laser via Intracavity SOA Structure[J]. INFRARED, 2017, 38(3): 17-20

应康,陈迪俊,魏芳,蔡海文,瞿荣辉. 基于腔内光放大器结构的光纤激光器噪声抑制方法[J]. 红外, 2017, 38(3): 17-20

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