半导体激光器光栅外腔光谱合束技术研究进展

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半导体激光器光栅外腔光谱合束技术研究进展
Development of Spectral Beam Combining of Diode Laser by Grating and External Cavity
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作　　者：孟慧成[1,2,3] 谭昊[1,2] 李建民[1,2] 卢飞[1,2] 田飞[1,2] 高松信[1,2] 武德勇[1,2]
Meng Huicheng, Tan Hao, Li Jianmin, Lu Fei, Tian Fei,  Gao Songxin, Wu Deyong（1 Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China ;2Key Laboratory of Science and Technology on High Energy Laser, China Academy of Engineering Physics,  Mianyang, Sichuan 621900, China ; 3Gradute School, China Academy of Engineering Physics, Beijing 100088, China）
机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]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 [3]中国工程物理研究院研究生部,北京100088
出　　处：《激光与光电子学进展》 CSCD 2015年第52卷第2期 33-40页,共8页
Laser ＆ Optoelectronics Progress
基　　金：中国工程物理研究院高能激光科学与技术重点实验室基金课题（HEL2014-08）
摘　　要：半导体激光器由于受波导结构和芯片封装等因素的限制,其快慢轴方向上的光束质量差距较大,主要用作抽运源,即被当成亮度转换器使用,很难作为高亮度光源直接应用。介绍了提高输出光功率密度和输出光束质量的非相干合束技术——光栅外腔反馈光谱合束技术,以及近几年来的国内外的发展现状,梳理了半导体激光器外腔光谱合束技术发展的若干重要动向,为以后半导体激光器光谱合束技术的发展提供了参考。
Due to the limitations of packaging, waveguide structure and other factors inducing the asymmetrical beam quality on fast and slow axis, diode laser is usually used as pump source and power convertor, it is difficult for diode laser to be used as a high-brightness laser source directly. The development of an incoherent beam combining technology-external cavity feedback grating spectral beam combining, which could improve the output optical power density and output beam quality of semiconductor laser, is introduced. A number of important trends in the development of semiconductor laser spectral beam combining technology are summatised, which provides a reference for future development of semiconductor laser spectral beam combining technology.
关键词：激光光学 光谱合束 光栅 外腔 反馈 半导体激光器
laser optics ; spectral beam combining ; grating ; external cavity ; feedback ; diode laser ;