Achieving single-longitudinal-mode output about Tm:YAG laser at room temperature |
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Authors: | Wu C T Ju Y L Zhou R L Duan X M Wang Y Z |
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Institution: | 1.National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, 150001, China ; |
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Abstract: | We report on the single-longitudinal-mode Tm:YAG laser with a volume Bragg grating pumped by laser diode at room temperature.
The maximum SLM power of 142 mW was achieved under incident pump power of 3.22 W. The central wavelength was 2012.6 nm accords
with the resonant wavelength of the VBG. Three cavity lengths were used to achieve high efficiency and clear spectrum. The
maximum output power were measured to be 450.5, 451.4, and 457.3 mW at incident pump power of 3.22 W, corresponding to a slope
efficiency of 17.1, 16.9, and 16.7% for the cavity length of 30, 40, and 50 mm, respectively. 40 mm cavity length having the
cleanest spectrum among the three was used for SLM laser with one 1 mm F-P etalon inserted into the cavity. |
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