| Investigation of laser diode face-pumped high average power heat capacity laser |
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| 作者姓名： | 张申金 周寿桓 唐晓军 秘国江 吕华昌 |
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| 作者单位： | School of Technical Physics Xidian University，Xi'an 710071 National Key Laboratory of Solid-State Laser，North China Research Institute of Electro-Optics，Beijing 100015，School of Technical Physics，Xidian University，Xi'an 710071 National Key Laboratory of Solid-State Laser，North China Research Institute of Electro-Optics，Beijing 100015，National Key Laboratory of Solid-State Laser North China Research Institute of Electro-Optics Beijing 100015，National Key Laboratory of Solid-State Laser North China Research Institute of Electro-Optics Beijing 100015，National Key Laboratory of Solid-State Laser North China Research Institute of Electro-Optics Beijing 100015 |
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| 基金项目： | This work was supported by the Project of National Key Laboratory of Solid-State Laser under Grant No. 413260104. |
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| 摘 要： | The three-dimensional (3D) pump intensity distribution in medium of the laser diode (LD) pumped high average power heat capacity laser is simulated by the ray tracing method, and the divergence characteristics of fast axis and slow axis of LD are simultaneously considered. The transient 3D temperature and stress distributions are also simulated by the finite element method (FEM) with considering the uneven heat source distribution in medium. A LD face-pumped Nd:GGG heat capacity laser is designed. The average output power is 1.49 kW with an optical-optical efficiency of 24.1%.
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