光子学报, 2009, 38 (8): 1892, 网络出版: 2010-05-10
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-directionalLaser Warning System
全向激光告警 大视场 窄带滤光片 透射率 Omni-directional laser warning Wide field of view Narrow-band spectrum filter Transmissivity
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.
Abstract
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.
应家驹, 王永仲, 何永强, 周冰, 周中亮. 全向激光告警系统中窄带滤光片的透射率分析[J]. 光子学报, 2009, 38(8): 1892. YING Jia-ju, WANG Yong-zhong, HE Yong-qiang, ZHOU BING, ZHOU Zhongliang. Transmissivity for Narrowband Filter in Omni-directionalLaser Warning System[J]. ACTA PHOTONICA SINICA, 2009, 38(8): 1892.
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