| 3.6-W cryogenic Tm,Ho:YLF laser pumped by fiber-coupled diodes module |
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| 作者姓名： | 姚宝权 鞠有伦 王月珠 贺万骏 李玉峰 |
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| 作者单位： | National Key Laboratory of Tunable Laser TechnologyHarbin Institute of Technology，Harbin 150001，National Key Laboratory of Tunable Laser TechnologyHarbin Institute of Technology，Harbin 150001，National Key Laboratory of Tunable Laser TechnologyHarbin Institute of Technology，Harbin 150001，National Key Laboratory of Tunable Laser TechnologyHarbin Institute of Technology，Harbin 150001，National Key Laboratory of Tunable Laser TechnologyHarbin Institute of Technology，Harbin 150001 |
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| 摘 要： | In this paper, we report a high power cryogenic cooling Tm(6 at.-%),Ho(0.5 at.-%):YLF laser end-pumped by a 19-fiber-coupled-diodes module with the central wavelength of 792 nm at 20°. The highest continuous-wave power of 3.6 W at 2.051 μm is attained under pumping power of 13.6 W, corresponding to optical-optical conversion efficiency of 26%, and the slope efficiency is larger than 30%. The threshold power is only about 0.16 W because of the long lifetime, large effective emission cross section, and low re-absorption in Tm,Ho:YLF crystal.
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