基于光纤麦克尔逊干涉仪的激光稳频研究  

Study of laser frequency stabilization based on fiber-based Michelson interferometer

作　　者：靖亮[1,2] 刘杰[1,3] 高静[1,3] 张林波[1,2] 许冠军[1,3] 

机构地区：[1]中国科学院国家授时中心,西安710600 [2]中国科学院大学,北京100039 [3]中国科学院时间频率基准重点实验室,西安710600

出　　处：《时间频率学报》2013年第4期193-198,共6页Journal of Time and Frequency

基　　金：国家重大科研仪器研制专项资助项目(Y133ZK1101);中国科学院重点部署资助项目(KJZD-EW-W02)

摘　　要：光纤不等臂干涉仪是光纤稳频式激光器的重要部分,它使激光频率的波动反映为干涉仪输出的相位扰动,从而利用干涉仪作为参考可以对激光的频率噪声进行抑制。通过对实验中采用的麦克尔逊光纤干涉仪进行研究,经过理论推导和实验测量,结果表明:采用光纤不等臂干涉仪的方法对激光进行稳频,可以使激光低频处的频率噪声得到较大的抑制,并且激光稳频过程中反馈环路的控制带宽主要受限于光纤不等臂干涉仪的时间延迟之差。The fiber interferometer with length-unbalanced arms is an important part of fiber-stabilized laser which can transform frequency fluctuation of laser into phase fluctuation at the output of the interferometer. Therefore, the frequency noise of the laser can be suppressed by using the interferometer as a reference. The fiber-based Michelson interferometer applied in this experiment is studied, both theoretically and experimentally. It demonstrates that the low frequency noise of the laser can be greatly suppressed by using a Michelson interferometer with length-unbalanced fiber arms, and the control bandwidth of frequency stabilization is mainly determined by unbalanced-time-delay of the fiber interferometer.

关 键 词：频率噪声 麦克尔逊干涉仪 传递函数 控制带宽 

分 类 号：TH744.3[机械工程—光学工程] TN248[机械工程—仪器科学与技术]