| 用于高功率双包层光纤激光器侧面耦合的对称夹层结构 |
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| 引用本文： | 张帆,王春灿,童治,宁提纲,简水生.用于高功率双包层光纤激光器侧面耦合的对称夹层结构[J].中国激光,2007,34(4):70-474. |
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| 作者姓名： | 张帆 王春灿 童治 宁提纲 简水生 |
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| 作者单位： | 北京交通大学光波技术研究所,北京,100044 |
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| 基金项目： | 北京交通大学校科研和教改项目;北京交通大学校科研和教改项目 |
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| 摘 要： | 提出了一种基于亚波长衍射光栅理论的介质-金属-介质的对称夹层结构,这种结构因为没有使用诸如折射率匹配液、光学固化胶等承受不了较高温度的黏接物质,所以可以用于大功率激光二极管阵列的侧面抽运,尤其可用于条形半导体激光器侧面抽运双包层掺杂光纤中,以制作各种大功率稀土离子掺杂光纤激光器,并且其耦合效率可以达到80%以上。同时,这种侧面抽运技术还支持多点抽运以及光纤两端同时激射高能激光。
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| 关 键 词： | 激光器 光纤激光器 双包层光纤 亚波长衍射光栅 耦合效率 |
| 文章编号： | 0258-7025（2007）04-0470-05 |
| 收稿时间： | 2006/8/30 |
| 修稿时间： | 2006-08-30 |
Design of a Dielectric-Metal-Dielectric Sandwich Structure for Efficient Side-Coupling of High Power Double-Clad Fiber Lasers |
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| ZHANG Fan,WANG Chun-can,TONG Zhi,NING Ti-gang,JIAN Shui-sheng.Design of a Dielectric-Metal-Dielectric Sandwich Structure for Efficient Side-Coupling of High Power Double-Clad Fiber Lasers[J].Chinese Journal of Lasers,2007,34(4):70-474. |
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| Authors: | ZHANG Fan WANG Chun-can TONG Zhi NING Ti-gang JIAN Shui-sheng |
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| Affiliation: | Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | A novel dielectric-metal-dielectric sandwich structure based on the theory of sub-wavelength diffraction grating was presented for efficient side-coupling of high power double-clad fiber(DCF) lasers.The structure design considerations and simulation results with high coupling efficiency which can be over 80% were also presented.It can be used for high power laser diodes bar to side-pump DCF lasers without any beam-shaping.Besides,this side-coupling technique was scalable by multi-point pumping with several laser diodes bars. |
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| Keywords: | lasers fiber laser double-clad fiber sub-wavelength diffraction grating coupling efficiency |
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