A Stable Diffusion-Bonded Tm:YLF Bulk Laser with High Power Output at a Wavelength of 1889.5 nm
DUAN Xiao-Ming1**, DING Yu1, YAO Bao-Quan1, DAI Tong-Yu1, LI Ying-Yi1, JIA Fu-Li2
1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001 2Tianjin Navigation Instrument Research Institute, Tianjin 300131
Abstract：A high power diode-pumped diffusion-bonded Tm:YLF laser operating at 1889.5 nm 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 0.07 nm with the incident pump power from 20.1 W to 136.8 W 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.
(Efficiency, stability, gain, and other operational parameters)
引用本文:
. [J]. 中国物理快报, 2014, 31(07): 74203-074203.
DUAN Xiao-Ming, DING Yu, YAO Bao-Quan, DAI Tong-Yu, LI Ying-Yi, JIA Fu-Li. A Stable Diffusion-Bonded Tm:YLF Bulk Laser with High Power Output at a Wavelength of 1889.5 nm. Chin. Phys. Lett., 2014, 31(07): 74203-074203.
2014, Vol. 31 
