飞行光学聚焦特性控制仪的研制  

Manufacture of Focusing Characteristics Controller of Flying Optics

作　　者：程兆谷[1] 张志平[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《激光与光电子学进展》2006年第10期21-25,共5页Laser & Optoelectronics Progress

摘　　要：研究了长距离飞行光学(flying optics)高斯光束聚焦特性,理论研究表明:将某一特定谐振腔的瑞利长度ZR取代q参量虚部的光斑尺寸w时,q参量的ABCD定律可以从基模推广到高阶模或几个模的叠加,并推导出飞行光学实际焦距与几何焦距之差△f的计算公式。为了精确控制飞行光学聚焦特性,研制了一套自适应飞行光学聚焦特性控制仪,实验和理论比较吻合。The focusing characteristics of long distance flying optics were studied systemically for TEMnm Gaussian beams. The results show that the ABCD law of parameter q can be extended to Gaussian modes of any order when the waist radius w in the imaginary part of the parameter q is substituted by the Rayleigh range ZR of a certain resonator in the equation. The difference between the real focal length and geometric focal length, which was defined as Δf, was calculated for laser applications. A novel self-adaptive optical System was demonstrated. for precisely controlling the focusing characteristics of long distance flying optics. Theoretical analyses and experimental results are consistent well.

关 键 词：飞行光学 聚焦特性 加工质量控制 

分 类 号：V261.8[航空宇航科学与技术—航空宇航制造工程]