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Temporal characteristics of narrow-band optical filters and their application in lidar systems

机译:窄带滤光片的时间特性及其在激光雷达系统中的应用

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The temporal characteristics of two different narrow-band optical filters at 532 nm are reported. Both filters operate on the 4P(1/2)-8S(1/2) atomic transition of potassium vapor, where the 4P(1/2) state is excited by a 770-nm, 10-ns laser pulse. The filters operate on the principle of circular birefringence induced by either the Faraday effect or two-photon transition, which is confirmed by experiments. The characteristic decay times of the filters are 5 and 0.015 mu s, which is significant for the design of optical gating and signal processing with matched filters for ocean lidar. (C) 1997 Optical Society of America.
机译:报告了两个不同的窄带滤光片在532 nm处的时间特性。两个滤光片都在钾蒸汽的4P(1/2)-8S(1/2)原子跃迁上工作,其中4P(1/2)状态被770 nm,10 ns的激光脉冲激发。滤光片根据法拉第效应或两光子跃迁引起的圆形双折射原理进行操作,这一点已通过实验证实。滤光片的特征衰减时间分别为5和0.015μs,这对于使用海洋激光雷达的匹配滤光片进行光学选通和信号处理的设计非常重要。 (C)1997年美国眼镜学会。

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