| A Stable Diffusion-Bonded Tm：YLF Bulk Laser with High Power Output at a Wavelength of 1889.5 nm |
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| 引用本文： | 段小明,;丁宇,;姚宝权,;戴通宇,;李应一,;贾福利.A Stable Diffusion-Bonded Tm：YLF Bulk Laser with High Power Output at a Wavelength of 1889.5 nm[J].中国物理快报,2014(7):96-98. |
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| 作者姓名： | 段小明 ;丁宇 ;姚宝权 ;戴通宇 ;李应一 ;贾福利 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 61308009, the China Postdoctoral Science Foundation under Grant No 2013M540288, and the Fundamental Research Funds for the Central Universities under Grant No HIT.NSRIF.2014044. |
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| 摘 要： | A high power diode-pumped diffusion-bonded Tm：YLF laser operating at 1889.5nm with a FWHM linewidth of less than 0.1 nm is reported. A Brewster plate and two Fabry-Perot etalons are inserted in the laser cavity for spectral narrowing and stabilization. Under an incident pump power of 136.8 W, 46.1 W of output power is achieved, corresponding to an optical-to-optical conversion efficiency of 33.7% and a slope efficiency of 42.8%. The laser wavelength shift of only 0.07nm with the incident pump power from 20.1 W to 136.8W is observed. The M2 factor at maximum output power is calculated to be 2.3 in the x-axis and 2.0 in the y-axis, respectively.
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| 关 键 词： | YLF激光器 高功率输出 扩散结合 波长偏移 Tm 稳定 最大输出功率 二极管泵浦 |
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