辅助透镜构造开普勒望远系统法测量热焦距  

Measurement of Thermal Focus Length by Accessorial Lens to Constitute Keplerian Telescope System

作　　者：王菲[1] 冯进良[1] 魏剑维[2] 李港[2] 陈檬[2] 

机构地区：[1]长春理工大学光电工程学院,吉林长春130022 [2]北京工业大学激光工程研究院

出　　处：《光电子．激光》2006年第2期219-221,共3页Journal of Optoelectronics·Laser

摘　　要：基于望远系统的工作原理,提出了辅助透镜与热透镜构成开普勒望远系统的方法来测量工作物质对指示光的动态热焦距,结合指示光与ND:YAG激光波长关系推导工作物质对ND:YAG激光的动态热焦距。研究结果表明,该方法测量精度小于±5 MM,能够实现对热焦距较小情况的测量。A new method to measure dynamic thermal focus length by reference light is put forward on the basis of telescope systems operating principle,which uses keplerian telesoope consisted of an accessorial lens inserted in optical path and thermal lens, According to the relation of wavelength between reference light and Nd. YAG laser, thermal focus length of Nd. YAG laser is decluced. Besides higher measurement precision, short thermal focus length can be measured possibly by the method, compared with other traditional measurement method.

关 键 词：ND:YAG激光器 动态热焦距 辅助透镜 开普勒望远系统 

分 类 号：TN241[电子电信—物理电子学]