一种多波长多编码合束输出的新型激光源研究  

Research on a new type of laser source with combined multi-wavelength and multi-coding beam output

作　　者：郑雅文 陈国胜 陈文建[1] 胥浩 李武森[1] ZHENG Yawen;CHEN Guosheng;CHEN Wenjian;XU Hao;LI Wusen(School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;North Information Control Research Academy Group Co.Ltd.,Nanjing 211153,China)

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094 [2]北方信息控制研究院集团有限公司,南京211153

出　　处：《激光技术》2023年第5期632-638,共7页Laser Technology

摘　　要：为了模拟复杂条件下的激光威胁源,设计了一种基于多波长多编码合束输出的新型激光产生装置,用于检测相应的激光告警设备。采用3路波长分别为650 nm、808 nm和905 nm的激光,以STC8H单片机为核心构成编码模块,输出调制后的编码激光,通过二向分色镜将3路激光光束合成一束出射,进行了理论分析和实验验证。结果表明,合束的脉冲激光能量最高达到2.45 mJ,光束直径为6 mm,频率调制精度达到0.5 Hz,占空比调制精度达到0.1%;该装置能够实现携带不同编码信息的、不同波长的激光合束出射。该研究为激光告警设备提供了一种新的检测装置,对检测手段的改进有一定的参考意义。In order to simulate the laser threat in complicated condition,a new type of laser source with combined multi-wavelength and multi-coding beam out was presented.Three wavelengths of 650 nm,808 nm and 905 nm were adopted here.The microcontroller STC8H was selected as core of the coding module to modulate laser beams.By dichroic mirrors,three channel lasers were combined to one channel laser output.And relevant theoretical analysis and simulation verification were carried out.The results show that the energy of pulse laser is up to 2.45 mJ,the diameter of beam is 6 mm.It can modulate laser driving signal in the precise frequency coding,the variational duty cycle coding and the variational space coding.The precision of frequency and duty cycle are 0.5 Hz and 0.1%.The device can provide laser beam with different coding messages in different wavelengths.This research presents a new detection device of laser warning devices,which has reference for the improvement of detection.

关 键 词：激光技术 激光告警检测 脉冲宽度调制 激光编码 多波长 多编码 二向色镜 

分 类 号：TN249[电子电信—物理电子学]