小型化碘稳频532nm固体激光器  

Acompact Iodine-Stabilized Solid-State Laser at 532nm

作　　者：林百科[1,2] 曹士英[1] 赵阳[1] 李烨[1,2] 王强[1,2] 林弋戈[1] 曹建平[1] 臧二军[1,2] 方占军[1,2] 李天初[1] 

机构地区：[1]中国计量科学研究院时间频率计量研究所,北京100029 [2]清华大学精密仪器系,北京100084

出　　处：《中国激光》2014年第9期8-11,共4页Chinese Journal of Lasers

基　　金：国家重大科学研究计划(2010CB922902)

摘　　要：传统532nm波长碘稳频固体激光频标装置虽然能达到很高的频率稳定度和不确定度,但装置比较庞大,不便搬运。而对于一些对激光频率稳定度要求不高的实际应用,如绝对重力仪等,缩小装置的体积以易于搬运,成为更为关注的因素。建立一套小型化532nm固体激光器,该系统体积小巧,易于搬运。通过与原有碘稳频532nm固体激光标准装置的进行拍频测量实验,得到1s的阿伦偏差为2.4×10-12,并计算得到该激光器的频率绝对值为563260223436kHz,对应的频率不确定度为52kHz(包含因子k=2)。该系统已被用于中国计量科学研究院的绝对重力仪中。Although the traditional iodine-stabilized 532 nm optical frequency standard is high frequency stability and uncertainty,it is complex and not portable.Lower frequency stability is acceptable in some cases such as absolute gravimeters,on which smaller size and portable are focused.A compact iodine-stabilized solid-state laser at 532 nm is established,which is portable for its small size.By the way of measuring the frequency beat with the original iodinestabilized 532 nm optical frequency standard,the Allan deviation is 2.4×10^-12 for 1 s averaging time,and the absolute frequency of the laser is 563260223436 kHz,whose uncertainty is 52 kHz（coverage factor k=2）.The system has been applied to absolute gravimeters at National Institute of Metrology.

关 键 词：激光器 计量 固体激光 激光稳频 

分 类 号：TN248.1[电子电信—物理电子学]