6.17-W continuous wave operation of a 2132-nm c-cut Tm,Ho:YAP pumped by a laser diode of 794.3 nm |
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| Authors: | L. J. Li B. Q. Yao Y. L. Ju Y. J. Zhang Y. Z. Wang S. J. Ye |
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| Affiliation: | (1) National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, 150001, China;(2) Department of Electronics Engineering, Heilongjiang Institute of Technology, Harbin, 150001, China |
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| Abstract: | Continuous wave (CW) operation of a c-cut Tm (5 at %), Ho (0.3 at %):YAP laser at 2132 nm wavelength were reported in this paper. In the temperature of 77 K, the Tm,Ho:YAP crystal was double end-pumped by a 21.4 W fiber-coupled laser diode (LD) at the center wavelength of 794.3 nm. Different resonator lengths and output couplers for the total pump power were tried. The resonator length was 205 mm, and the maximum CW output power of 6.17 W was acquired, corresponding to an optical-optical conversion efficiency of 28.8% and a slope efficiency of 35.6%. |
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