| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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
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| Cite this article: |
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DUAN Xiao-Ming, DING Yu, YAO Bao-Quan et al 2014 Chin. Phys. Lett. 31 074203 |
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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.
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Published: 30 June 2014
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| PACS: |
42.55.Xi
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(Diode-pumped lasers)
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42.60.Pk
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(Continuous operation)
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42.60.Lh
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(Efficiency, stability, gain, and other operational parameters)
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