Single-longitudinal-mode lasing of Tm, Ho:GdVO4 using a filter of Fabry-Perot etalon and volume Bragg grating
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- Ju, Y.L., Zhou, R.L., Wang, Q. et al. Laser Phys. (2010) 20: 799. doi:10.1134/S1054660X10070157
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In this letter, we report a diodepumped CW Tm, Ho:GdVO4 laser at 77 K with a volume Bragg grating (VBG) instead of the conventional mirror. Inserting a Fabry-Perot etalon into the cavity, a singlelon-gitudinal-mode of Tm, Ho:GdVO4 laser which I s operating at 2038.387 nm with output power 64 mW is obtained. The slope efficiency of 4.68% and a narrow linewidth about 45 pm FWHM are achieved. And appropriate cavity length is about 75 ± 5 mm.