A linearly-polarized directly diode-pumped L-shaped Er:YAG laser at 1617 nm with average output power scaling

Zhenzhen Yu; Mingjian Wang; Xia Hou; Weibiao Chen

doi:10.1117/12.2065105

3 February 2015 A linearly-polarized directly diode-pumped L-shaped Er:YAG laser at 1617 nm with average output power scaling

Zhenzhen Yu, Mingjian Wang, Xia Hou, Weibiao Chen

Author Affiliations +

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 925504 (2015) https://doi.org/10.1117/12.2065105
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

We report a linearly-polarized 1617 nm Er:YAG laser pumped by 1532 nm fiber-coupled laser diodes. An L-shaped resonator was employed incorporating two Er:YAG crystals which were pumped independently. In continuous-wave operation, a maximum output power of 7.73 W was obtained with an optical conversion efficiency of ~15.2% (versus incident pump power). To the best of our knowledge, this was the highest conversion efficiency ever demonstrated for a directly diode-pumped Er:YAG laser. In Q-switched operation, pulses with energy of 7.8 mJ and pulse duration of 80 ns were yielded at a repetition rate of 500 Hz, and the corresponding peak power was ~ 97 kW at 1617 nm.

Citation Download Citation

Zhenzhen Yu, Mingjian Wang, Xia Hou, and Weibiao Chen "A linearly-polarized directly diode-pumped L-shaped Er:YAG laser at 1617 nm with average output power scaling", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 925504 (3 February 2015); https://doi.org/10.1117/12.2065105

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