Optimum design of wide angle laser detecting system based on fish eye lens and sinusoidal amplitude grating

被引：13
|
作者：
Wang, Long [1 ]
Dong, Hongjun [1 ]
Zhang, Weian [1 ]
Shen, Xueju [1 ]
机构：
[1] Shijiazhuang Mech Engn Coll, Shijiazhuang 050003, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2014年 / 310卷
关键词：
Laser warning; Fish-eye lens; Sinusoidal amplitude transmission grating; CENTROID ESTIMATION; ALGORITHM;
D O I：
10.1016/j.optcom.2013.07.084
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A wide angle laser detecting system with non-mechanical scanning to determine both laser wavelength and arrival angle is described and assembled. Then the system is tested utilizing both 1319 nm continuous-wave and 1064 nm pulsed Nd:YAG laser in experiments. The incident laser is imaged to three equal interval spots and both incident angle and wavelength can be determined based on coordinates of the middle spot and interval of two adjacent spots. Half field of view of this system is 80 degrees, and maximum wavelength error is 40 nm.When the laser enters in the range of 0-70 degrees, the maximum arrival angle error is about 2 degrees, and the error enlarges to 6 when the arrival angel is 80 degrees. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：173 / 178
页数：6
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