用于太阳光泵浦光纤激光聚光系统的改进型复合抛物面聚光器的设计  

Design of an improved compound parabolic concentrator for solar pumped fiber laser concentrating system

作　　者：张墨 王子荣 王书新[1] 张星祥[1] ZHANG Mo;WANG Zirong;WANG Shuxin;ZHANG Xinxiang(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《量子电子学报》2024年第2期289-299,共11页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(11873046)。

摘　　要：为研制适用于太阳光泵浦光纤激光器的聚光系统,在分析了传统复合抛物面聚光器(CPC)用于耦合光纤的可行性及其缺陷的基础上,提出了一种改进型CPC用于光纤耦合。完成了由主级抛物面反射镜和次级改进型CPC组成的太阳光泵浦多级聚光方案,并与普通CPC和透镜组构成次级聚光器的方案以及无次级聚光器的方案进行了对比。光线追迹仿真模拟结果表明:改进型CPC能够克服普通CPC出射光线发散的缺陷,从而提高与光纤的耦合效率,当主镜接收角度在±0.55°范围内,其耦合效率维持在93.53%-96.43%,该结果优于其他方案。In order to develop a concentrator system suitable for solar-pumped fiber lasers,an improved compound parabolic concentrator(CPC)for fiber coupling was proposed based on the analysis of the feasibility and defects of traditional CPC for fiber coupling.A solar pumped multistage concentrator scheme consisting of a primary parabolic mirror and a secondary improved CPC has been developed,and comparison with the scheme of a secondary concentrator composed of a general CPC and a lens group,as well as the scheme without secondary concentrators,has also been carried out.The simulation results of ray tracing show that the improved CPC can overcome the divergence of ordinary CPC outgoing light,thereby improving its coupling efficiency with optical fiber.When the receiving angle range of the primary mirror is within±0.55°,the coupling efficiency of the improved CPC with optical fiber is maintained at 93.53%-96.43%,which is superior to other schemes.

关 键 词：激光技术 太阳光泵浦激光器 复合抛物面聚光器 光纤耦合 

分 类 号：TN248[电子电信—物理电子学]