红外可调声光滤光器的设计和特性分析  

Design and Characteristics Analysis for IR Acousto-Optical Tunable Filter

作　　者：宗德蓉[1] 罗斌[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209

出　　处：《光电工程》2002年第5期65-67,共3页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(60076019)

摘　　要：根据声光互作用原理,以TeO2晶体为互作用介质,选取互作用长度为28mm,设计制成近红外声光可调滤光器 (AOTF),其衍射波长与超声频率存在对应关系.测试结果表明,该器件的工作波长范围为0.9～2.6μm,驱动频率为40~120MHz,光谱分辨力为7.268nm,6.957nm(对应波长分别为1.5μm,2.4μm).With TeO2 crystal as interaction medium and selecting 28mm as interaction length, an IR acousto-optical tunable filter is designed and manufactured according to acousto-optic interaction principle. There is a corresponding relation between diffraction wavelength and ultrasonic frequency. The testing results show that the operating wavelength of the filter is 0.9-2.6mm and its driving frequency is 40-120MHz. When the operatin wavelength is 1.5 and 2.4,their corresponding spectral resolution is 7.268nm and 6.957nm,respectively.

关 键 词：红外可调 设计 特性 声光器件 声光滤光器 光谱分辨力 AOTF 

分 类 号：TN65[电子电信—电路与系统]