平面波前畸变量对激光相干合成效率的影响(特邀)  

Plane Wavefront Distortion and Its Effect on Laser Coherent Synthesis Efficiency(Invited)

作　　者：张豪 亢兴旺 刘阳 关美玲 温勤 钟兴林 王花花 伍剑 高禄 张泽 Zhang Hao;Kang Xingwang;Liu Yang;Guan Meiling;Wen Qin;Zhong Xinglin;Wang Huahua;Wu Jian;Gao Lu;Zhang Ze(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Optoelectronics,University of Chinese Academy of Sciences,Beijing 100049,China;Qilu Aerospace Information Research Institute,Jinan 250101,Shandong,China;School of Science,China University of Geosciences(Beijing),Beijing 100083,China;Key Laboratory of Computational Optical Imaging Technology,Chinese Academy of Sciences,Beijing 100094,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]北京邮电大学电子工程学院,北京100876 [3]中国科学院大学光电学院,北京100049 [4]齐鲁空天信息研究院,山东济南250101 [5]中国地质大学(北京)数理学院,北京100083 [6]中国科学院计算光学成像技术重点实验室,北京100094

出　　处：《激光与光电子学进展》2024年第7期99-105,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62105341,12074350);山东省自然科学基金(ZR2021QF126)。

摘　　要：激光相干合成技术是在遥感和通信等领域中能够同时提升激光功率和保持光束质量的有效技术。其中填充因子是影响激光相干合成和衡量相干合成阵列的重要因素。然而,它却不是完备的。因此,提出采用平面波前畸变量(PWD)作为评估激光相干合成性能的综合参数,该参数综合考虑了光束质量、阵列对准、元件制造误差以及其他因素。通过理论推导平面波前畸变量的表达式,分析该参数对系统合成效率的影响,进一步的仿真和实验测量结果表明,平面波前畸变量可以用于反映激光相干合成的综合效率高低,与桶中功率呈负相关。研究结果表明波阵面调制相干光束组合技术在多孔径激光阵列相干组合系统的实际应用中具有潜在的科学价值。Laser coherent synthesis is an effective technique for enhancing laser power and maintaining beam quality in fields such as remote sensing and communication.The filling factor affects laser coherent synthesis and plays a critical role in assessing coherent synthesis arrays.However,it is not a comprehensive factor.Accordingly,this study introduces plane wavefront distortion(PWD)as an integrated parameter for evaluating the performance of laser coherent synthesis.PWD simultaneously considers factors such as beam quality,array alignment,and component manufacturing errors.Based on the theoretical derivation of the expression for PWD and analysis of its effect on the efficiency of the system,simulations and experimental measurements demonstrate that PWD can be used to reflect the overall efficiency of laser coherent synthesis,exhibiting a negative correlation with it.The findings offer scientific value for the practical application of wavefront modulation techniques in coherent beam combinations in multi-aperture laser array coherent combination systems.

关 键 词：相干合成 填充因子 桶中功率 激光阵列 波前 

分 类 号：O436[机械工程—光学工程]