【作者】 李凯鹏； 刘芳华； 陈勇强； 贺岩； 陈卫标；

【Author】 Li Kaipeng;Liu fanghua;Chen Yongqiang;He Yan;Chen Weibiao;Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences;

【机构】 中国科学院上海光学精密机械研究所空间激光传输与探测技术重点实验室； 材料与光电研究中心中国科学院大学；

【摘要】 由于水体对入射光的强烈的衰减作用,使得入射光在水中传播时呈指数级衰减,普通的光源由于本身的准直性较差,在水下传播时也难以达到理想的探测深度。激光的出现提供了一种新的水下探测的手段,利用激光的高准直性,在海洋窗口的低衰减可以达到以往光学手段难以达到的探测深度。特别是现在激光雷达技术的应用除了可以进行更大水深的目标探测外,还可以克服声纳设备由于水和空气声阻不匹配的问题,实现从水上到水下的直接探测。激光水下探测技术经历了几十年的发展,相关的技术也越来越成熟。本文结合现有的激光水下探测技术,讨论了激光水下探测技术的相关成果和发展趋势。更多还原

【Abstract】 Because of the strong attenuation effect of water on incident light,the incident light propagates exponentially in water.On the other hand,with the poor collimation of ordinary light sources,it is difficult to reach the ideal detection depth when propagating underwater.The emergence of laser provides a new means of underwater detection.With the high collimation of laser,the low attenuation of the ocean window can reach the detection depth which is difficult to reach by the previous optical means.Especially,the application of lidar technology can not only detect targets with larger water depth,but also overcome the mismatch between water and air acoustic resistance of sonar equipment and realize direct detection from water to underwater.Laser underwater detection technology has experienced decades of development,and related technologies are becoming more and more mature.In this paper,combined with the existing laser underwater detection technology,the related achievements and development trend of laser underwater detection technology are discussed.更多还原