飞秒激光频率梳测量光频用拍频装置的实验研究  

Research on a Setup for Absolute Frequency Measurement with a Femtosecond Optical Synthesizer

作　　者：张大鹏[1] 梁志国[1] 张志权[1] 韩海年[2] 

机构地区：[1]中航工业北京长城计量测试技术研究所,北京100095 [2]中国科学院物理研究所,北京100080

出　　处：《计测技术》2014年第2期36-38,58,共4页Metrology & Measurement Technology

基　　金：国家"十一五"技术基础科研项目(A类)(07A401008)

摘　　要：飞秒激光频率梳测量光频实验中会遇到拍频信号信噪比低、高信噪比拍频信号维持时间短的问题。本文针对该问题在光路的准直、稳定维持方面采取了相应的光学、机械结构优化以及对拍频信号采取了先滤波后放大的措施;设计了一种拍频装置,并利用该装置进行了碘稳频633 nm激光器e峰频率的绝对测量实验。In the absolute frequency measurement of optical frequency with a femtosecond optical synthesizer,the optical beat signal is always too weak to be read by a frequency counter（ Agilent 53132A）. And the signal-to-noise ratio will get weaker as time flies. In this article we developed an appropriative setup for enhancing the signal-to-noise ratio of optical frequency beating by special optical and mechanical methods, with which we measured the frequency of the iodine-stabilized He-Ne laser at 633 nm.

关 键 词：拍频装置 飞秒激光频率梳 碘稳频633 nm激光 

分 类 号：TB96[机械工程—光学工程] TH741[一般工业技术—计量学]