一种主动锁模光纤激光器超模噪声的抑制方法

南京大学学报(自然科学版) ›› 2015, Vol. 51 ›› Issue (1): 37–42.

一种主动锁模光纤激光器超模噪声的抑制方法

薛天明,朱广浩*

出版日期:2015-01-04 发布日期:2015-01-04
作者简介: (南京大学电子科学与工程学院,南京,210023)
基金资助:
国家自然科学基金（2011CBA001）

A technique for suppressing the super-mode noise of actively mode-locked fiber lasers

Xue Tianming, Zhu Guanghao*

Online:2015-01-04 Published:2015-01-04
About author:(School of Electronic Science and Engineering, Nanjing University, Nanjing, 210023, P.R. China)

摘要/Abstract

摘要： 本文介绍了一种抑制主动锁模光纤激光器超模噪声的新方法。该方法采用基于光强信号的负反馈技术对激光器腔内的光脉冲能量进行动态调整，从而抑制激光脉冲的幅度抖动。作者通过仿真，讨论了负反馈回路的增益、带宽、和脉冲时延对激光器噪声抑制效果的影响。仿真结果表明通过合理地设置参数，本方法可以使激光器超模噪声的抑制比达到60 dB。

Abstract: We introduce a technique to suppress the super-mode noise of actively mode-locked fiber lasers. This is achieved by driving the intra-cavity modulator with a RF signal and a feedback signal that is derived from the laser’s output. Using numerical simulations, we examine the effects of feedback loop gain, loop bandwidth, and loop delay on the extent of laser super-mode noise suppressions. Our results show that with proper choices of the loop parameters, the supper-mode noises of actively mode-locked fiber lasers can be suppressed by as much as 60 dB.

薛天明,朱广浩*. 一种主动锁模光纤激光器超模噪声的抑制方法[J]. 南京大学学报(自然科学版), 2015, 51(1): 37–42.

Xue Tianming, Zhu Guanghao*
. A technique for suppressing the super-mode noise of actively mode-locked fiber lasers
[J]. Journal of Nanjing University(Natural Sciences), 2015, 51(1): 37–42.

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