A Stable Diffusion-Bonded Tm：YLF Bulk Laser with High Power Output at a Wavelength of 1889.5 nm

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...

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Bibliographic Details
Published inChinese physics letters Vol. 31; no. 7; pp. 96 - 98
Main Author 段小明 丁宇 姚宝权 戴通宇 李应一 贾福利
Format Journal Article
LanguageEnglish
Published 01.07.2014
Subjects
Computational efficiency
Computing time
Diffusion bonding
Laser cavities
Lasers
Pumps
Spectra
Wavelengths
YLF激光器
二极管泵浦
扩散结合
最大输出功率
波长偏移
稳定
高功率输出
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/7/074203

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Summary: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.
Bibliography:11-1959/O4
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.
DUAN Xiao-Ming, DING Yu, YAO Bao-Quan, DAI Tong-Yu, LI Ying-Yi, JIA Fu-Li（ 1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001 ; 2 Tianjin Navigation Instrument Research Institute, Tianjin 300131）
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/7/074203