中国激光, 2018, 45 (5): 0510005, 网络出版: 2018-05-02
星载激光雷达系统杂散光分析与抑制 
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Stray Light Analysis and Suppression for Spaceborne Lidar System
图 & 表
图 1. (a)星载激光雷达接收光学系统及(b)探测器接收能量分类
Fig. 1. (a) Spaceborne lidar receiver optical system and (b) detected energy classification of detector
图 3. (a)杂散光分析模型;(b)消色差准直器内挡光环模型
Fig. 3. (a) Stray light analyzing model and (b) new baffles model in achromatic collimator barrel
图 4. 消色差准直器镜筒内挡光环设计方法
Fig. 4. Design method of the new baffles in achromatic collimator barrel
图 6. 杂散光模拟结果。(a)、(c)、(e)分别是模型1~3的散射光线图;(b)、(d)、(f)分别是相应的探测器视图,均没有探测到达到阈值的噪声光。(g)模型4的探测器视图,被探测到的杂散光功率为1.22 pW。(h)模型5的探测器视图,检测到的噪声光功率为0.00656 pW
Fig. 6. Noise light simulation results. (a), (c) and (e) are the scattering ray plots of models 1, 2, 3, respectively; and (b), (d) and (f) are the detector views respectively. There is no stray light to the detectors. (g) is the detector view of telescope mirrors scattering simulation model. Detected noise light power is 1.22 pW. (h) is the detector view of new noise light suppression baffles model. Detected noise light power is 0.00656 pW
表 1不同策略下的杂散光分析模型
Table1. Stray light analyzing models for different strategies
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穆永吉, 李蕊, 万渊, 刘继桥, 侯霞, 陈卫标. 星载激光雷达系统杂散光分析与抑制[J]. 中国激光, 2018, 45(5): 0510005. Mu Yongji, Li Rui, Wan Yuan, Liu Jiqiao, Hou Xia, Chen Weibiao. Stray Light Analysis and Suppression for Spaceborne Lidar System[J]. Chinese Journal of Lasers, 2018, 45(5): 0510005.
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