Diode-pumped single-frequency Tm:YAG NPRO laser by using different pumping spot sizes |
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| Authors: | Zhifeng LIN Chunqing GAO Mingwei GAO Yunshan ZHANG Lingni ZHU Yan ZHENG |
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| Affiliation: | School of Optoelectronics, Beijing Institute of Technology, Beijing 100081,China |
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| Abstract: | This paper presents the experimental results of the monolithic Tm:YAG nonplanar ring oscillator (NPRO) pumped by two kinds of laser diodes with different pumping spot sizes. By longitudinal pumping in continuous-wave operation, a single-frequency output power of 404 mW was obtained at room temperature,with a slope efficiency of 48.2%. The influences of the pumping spot sizes on the beam properties were also discussed. |
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| Keywords: | nonplanar ring oscillator (NPRO) Tm:YAG laser laser diode pumping spot size |
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