AUTOMATIC LASER LIGHT DETECTION AND FILTERING USING A LIQUID CRYSTAL LYOT FILTER
AUTOMATIC LASER LIGHT DETECTION AND FILTERING USING A LIQUID CRYSTAL LYOT FILTER
复制标题
使用液晶 Lyot 滤光片进行自动激光检测和滤光
DOI：
10.1142/s0218199193000395
复制
发表时间：
1993
影响因子：
2.7
通讯作者：
J. Staromlynska
中科院分区：
文献类型：
--
作者：
S. Rees;J. Staromlynska
设计并测试了一种既可作为简单的连续激光警告器又可作为防眩光保护装置的装置。该设计基于单级、双元件、可调谐液晶 Lyot 滤波器。实验室测试表明，该装置对单色连续波辐射的检测灵敏度约为43×10−9W/cm2，可实现的对比度大于100：1，连续波激光源的自动检测和过滤已得到证实。结果表明，自动滤除激光辐射的算法效果良好，消光效果良好。讨论了影响对比度的因素并提出了改进设备设计的建议。
A device which acts as both a simple cw laser warner and anti-dazzle protection device has been designed and tested. The design is based on a single stage, double element, tunable liquid crystal Lyot filter. Laboratory tests have shown that the detection sensitivity of the device for monochromatic cw radiation is approximately 43×10−9W/cm2 and that the achievable contrast ratio is greater than 100:1 Automatic detection and filtering of a cw laser source has been demonstrated. Results indicate that the algorithm to automatically filter the laser radiation works well and that the extinction obtained is good. Factors which affect the contrast ratio are discussed and improved device design suggested.