基于双管的高亮度半导体激光器光纤耦合系统设计

吴华玲; 郭林辉; 王昭; 余俊宏; 高松信; 武德勇

doi:doi:10.3788/cjl201643.1001012

中国激光, 2016, 43 (10): 1001012, 网络出版: 2016-10-12

基于双管的高亮度半导体激光器光纤耦合系统设计下载： 608次

Design of High Brightness Fiber-Coupled Diode Laser System Based on Dual-Emitters

论文大纲

吴华玲 ^1,2,*郭林辉 ^1,2王昭 ^1,2余俊宏 ^1,2高松信 ^1,2武德勇 ^1,2

作者单位

¹ 中国工程物理研究院高能激光科学与技术重点实验室，四川绵阳 621900

² 中国工程物理研究院应用电子学研究所，四川绵阳 621900

激光器半导体激光器高亮度光纤耦合 lasers diode laser high brightness fiber coupling Zemax Zemax

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摘要

半导体激光器光纤耦合输出系统常被用作光纤激光器的抽运源，是光纤激光器的核心器件之一。针对芯径105 μm、NA0.15的多模光纤，使用Zemax软件设计了一种基于双管的高亮度半导体激光器光纤耦合输出系统。该系统采用高精密准直技术、台阶加反射镜空间合束、偏振合束和慢轴扩束技术完成光束整形，最后使用非球面透镜聚焦耦合进芯径105 μm、NA0.15的目标光纤。结合设计，在现有实验条件的基础上进行了等效验证实验。模拟和实验均表明：该系统可将16支双管耦合进芯径105 μm、NA0.15的光纤，在注入电流为15 A时，可获得稳定输出功率154 W，亮度达25 MW/（cm2·sr），对应电光效率为42%。该模块工程化后可广泛应用在光纤激光器抽运及工业加工等领域。

Abstract

Fiber-coupled diode laser output system is often used for pumping source of fiber laser, and it is one of the key elements of fiber laser. Aimed at multi-mode fiber of 105 μm core diameter and 0.15 numerical aperture, a high brightness fiber-coupled diode laser system based on dual-emitters is designed by using Zemax software. In the system, the high precision collimation technique, spatial multiplexing used steps and mirrors, polarization multiplexing and slow axis beam expander technique are taken to achieve beam shaping. Finally, an aspherical lens is used to focus and couple the beam into the target fiber of 105 μm core diameter and 0.15 numerical aperture. Combined with the design, the equivalent confirmatory experiment is carried out based on the existing experimental condition. The simulation and experiment all show that, the system can couple 16 dual-emitters into a fiber of 105 μm core diameter and 0.15 numerical aperture, the stable output power can reach 154 W, the brightness is up to 25 MW/( cm2·sr), and the electro-optics efficiency is 42% at injection current 15 A. This system can be widely used in pumping fiber laser, manufacture processing and other fields after been engineered.

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吴华玲, 郭林辉, 王昭, 余俊宏, 高松信, 武德勇. 基于双管的高亮度半导体激光器光纤耦合系统设计[J]. 中国激光, 2016, 43(10): 1001012. Wu Hualing, Guo Linhui, Wang Zhao, Yu Junhong, Gao Songxin, Wu Deyong. Design of High Brightness Fiber-Coupled Diode Laser System Based on Dual-Emitters[J]. Chinese Journal of Lasers, 2016, 43(10): 1001012.

基于双管的高亮度半导体激光器光纤耦合系统设计下载： 608次

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