| kW级光纤耦合输出二极管激光器模块 |
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| 引用本文： | 谭昊,郭林辉,高松信,唐淳,武德勇,李建民,尹新启.kW级光纤耦合输出二极管激光器模块[J].强激光与粒子束,2012,24(11):2581-2584. |
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| 作者姓名： | 谭昊 郭林辉 高松信 唐淳 武德勇 李建民 尹新启 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所,四川 绵阳 621 900; |
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| 基金项目： | 国家自然科学基金重大项目(60890201) |
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| 摘 要： | 基于二极管激光器mini-bar的光纤耦合方式是一种降低耦合系统成本并提高整体转换效率的方法, 为此，采用40片封装在铜微通道冷却器上的连续60 W二极管激光器mini-bar组成空间叠加阵列，作为耦合光源，采用非球面柱透镜及柱透镜阵列对mini-bar叠阵进行了快轴与慢轴的准直，实现了两列叠阵的激光束沿快轴方向的空间合成以提高叠阵激光束的填充因子，合成后的激光束可以耦合进入芯径为800 m、数值孔径为0.22的光纤。测试结果表明，光纤耦合模块输出功率最高为1360 W，整体光光效率58%，光纤端面的功率密度达到1.73105 W/cm2。
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| 关 键 词： | 二极管激光器 mini-bar 空间叠加 光纤耦合 |
| 收稿时间： | 2011/12/12 |
kW-output fiber coupled diode laser module |
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| Tan Hao
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Guo Linhui
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Gao Songxin
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Tang Chun
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Wu Deyong
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Li Jianmin
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Yin Xinqi.kW-output fiber coupled diode laser module[J].High Power Laser and Particle Beams,2012,24(11):2581-2584. |
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| Authors: | Tan Hao Guo Linhui Gao Songxin Tang Chun Wu Deyong Li Jianmin Yin Xinqi |
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| Affiliation: | 1.Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China;2.Graduate School of China Academy of Engineering Physics,Beijing 100088,China |
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| Abstract: | The fiber coupled system based on mini-bars is an effective way of avoiding complex beam shaping to reduce costs and improve brightness. Forty mini-bars mounted on copper microchannel heatsink are arranged in two stacks to collimate the output beam of the stacks with the aspherical cylindrical lens and cylindrical lens array in fast and slow axis directions in this paper. For increasing the fill factor of the beams of the stacks, the beams are combined spatially in the fast axis direction. The combined beam could be coupled into the fiber of 800 μm core diameter and 0.22 numerical aperture. The opto-optical efficiency of the fiber coupled module is about 58% and the maximum output power is 1360 W with the power density of 1.73×105 W/cm2 at fiber output facet. |
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| Keywords: | diode laser mini-bar spatial coupling fiber coupling |
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