全向激光告警系统中窄带滤光片的透射率分析  

Transmissivity for Narrowband Filter in Omni-directional Laser Warning System

作　　者：应家驹[1] 王永仲[1] 何永强[1] 周冰[1] 周中亮[1] 

机构地区：[1]军械工程学院光电技术研究所,石家庄050003

出　　处：《光子学报》2009年第8期1892-1896,共5页Acta Photonica Sinica

摘　　要：根据全向激光告警系统的结构特点,阐明了系统中大视场接收和窄带光谱滤波技术之间的矛盾.通过建立法布里-珀罗滤光片的模型,从反射膜的反射率、位相跃变以及间隔层介质所产生的光程差等因素,分析了激光从不同入射角入射时,滤光片具有不同的透射率.给出了激光入射角与透射率之间的关系公式,通过实验验证其有效性.Based on analyzing the structure of omni-directional laser warning system,the contradiction between wide field of view and the narrow-band spectrum filter is expounded.The Fabry-Perot model is set up. And the transmissivity of the filter vary to different incident angle is analyzed from the factors such as reflectivity of the reflective coating,phase jump and optical path difference.The relationship formula of incident angle and the transmissivity is given out, and its validity is verified by experiment.

关 键 词：全向激光告警 大视场 窄带滤光片 透射率 

分 类 号：TB851.7[一般工业技术—摄影技术] TN247[电子电信—物理电子学]