红外与激光工程, 2018, 47 (9): 0922001, 网络出版: 2018-10-06  

水平链路激光广播技术的功率传输方法与验证

Means and verification of broadcast technology applied to laser transmission on horizontal link
作者单位
长春理工大学 理学院, 吉林 长春 130022
摘要
当前传统点对点激光通信技术已经得到了长足进步, 为了探索在有限范围内实现局域激光广播的有效手段, 提出了一种适用于短距离水平链路激光广播的有效方法, 设计了相应的验证性广播通信系统, 并在光功率最优分配的角度上对激光广播进行了系统建模研究。首先, 从光功率衰减的角度对激光扩束理论模型和平行光幕理论模型进行了分析和对比, 揭示了平行光幕通信模型的光功率损失模型; 其次, 结合高斯光束光学成像变换理论模拟了平行光幕的远场场强分布情况, 通过一个领先的光学和照明设计软件, 揭示了光幕远场分布与传输距离的关系; 最后, 通过在不同信道环境下的野外通信实验验证了平行光幕理论模型的优越性与可行性。
Abstract
At present, there has been great progress in the field of the point-to-point laser communication technology. In order to search for an effective means of achieving localized laser broadcast communication within a limited range, an effective method of horizontal link laser broadcast communication was presented, and the corresponding verifiable broadcast communication system was designed. In addition, the laser broadcast was systematically studied by one physical model built at the optimal distribution of optical power. First of all, the theoretical model of laser beam expansion and the theoretical model of parallel light curtain were made comparisons and analyzed from the angle of attenuation of optical power, and the optical power loss model of the parallel light curtain was established as a result. Secondly, combined with the theory of optical imaging transformation based on Gaussian beam, the field distribution of far field of parallel light curtain was simulated by one leading optical and illumination design software and the relation between the filed distribution of far field of light curtain and the distance of transmission was revealed. Finally, the superiority and feasibility of the parallel light curtain theory model were verified by field communication experiments in different information channels.

赵凯强, 母一宁, 王帅, 李平, 朱焱. 水平链路激光广播技术的功率传输方法与验证[J]. 红外与激光工程, 2018, 47(9): 0922001. Zhao Kaiqiang, Mu Yining, Wang Shuai, Li Ping, Zhu Yan. Means and verification of broadcast technology applied to laser transmission on horizontal link[J]. Infrared and Laser Engineering, 2018, 47(9): 0922001.

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