光学鉴频器的精密温控及其对测量的影响  

High Precision Temperature Control of Optical Frequency Discriminator and Its Influence on Measurement

作　　者：赵存峰 毕德仓[1] 姜丽媛[1] 竹孝鹏[1] 杜娟[1,2] 李文冬 陈卫标 Zhao Cunfeng1,2, Bi Decang1, Jiang Liyuan1, Zhu Xiaopeng1, Du Juan1,2, Li Wendong1,2, Chen Weibiao1(1. Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China ; 2.University of Chinese Academy of Sciences, Beijing 100049, Chin)

机构地区：[1]中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室,上海201800 [2]中国科学院大学,北京100049

出　　处：《中国激光》2018年第7期169-176,共8页Chinese Journal of Lasers

基　　金：国家自然科学基金(6138108)

摘　　要：研究了光学鉴频器的精密温控方法及其对鉴频光学谱线、鉴频误差的影响。设计了双层温控结构及电路,采用三线制等长接法、双路电流源方向切换等方式来减小引线电阻影响,消除了两路电流源失配。研究了基于现场可编程门阵列(FPGA)的模拟和数字混合温度控制方法,不同温度设置点的控制实验显示温控精度达到了0.0062℃,测量误差为0.0036℃。用单频紫外激光测试了该温控精度对光学鉴频器的谱线移动、透过率的影响边界,在该控制精度下的透过率谱线平移为0.11 MHz,造成的速度测量误差为0.0195 m/s。The precision temperature control method of the optical frequency discriminator and its influence on optical transmission spectrum and measurement error are studied. A double-deck temperature controlling structure and corresponding circuit are designed,and the influence of the wire resistance is reduced by using a three-wire equal length method and dual switchable current source,and the mismatch of the current source is eliminated. The analog and digital hybrid temperature control method based on field-programmable gate array（ FPGA） is studied. Control experiment with different temperature set points show that the temperature control accuracy is 0. 0062 ℃ and the temperature measurement error is 0. 0036 ℃. The influence of the temperature control accuracy on the spectral line movement and transmittance of the optical frequency discriminator is tested with a single-frequency ultraviolet laser. The transmittance spectrum line translation under this temperature control accuracy is 0. 11 MHz,resulting in a speed measurement error of 0. 0195 m/s.

关 键 词：测量 鉴频器 温度 光谱 多普勒频移 

分 类 号：O433[机械工程—光学工程] O551.2[理学—光学]