Electro-optically Q-switching performance of diode-pumped HoGdVO4 laser

Jiaze Wu; Xiaoming Duan; Yu Ding; Youlun Ju

doi:10.1117/12.2663046

12 April 2023 Electro-optically Q-switching performance of diode-pumped HoGdVO₄ laser

Jiaze Wu, Xiaoming Duan, Yu Ding, Youlun Ju

Proceedings Volume 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022); 1256538 (2023) https://doi.org/10.1117/12.2663046
Event: Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 2022, Shanghai, China

Abstract

We proposed a Ho:GdVO₄ laser operating at 2.05 μm which was directly in-band dual-end-pumped by a pair of 1.94 μm fiber-coupled laser diodes (LD). A Ho:GdVO₄ crystal with doping of 1.0 at.% was used as the gain medium. In continuous-wave (CW) mode, we obtained the maximum output power of 6.5 W at 2047.9 nm with the absorbed pump power of 28 W, corresponding to a slope efficiency of 37.6 %. By using an LGS crystal as the electro-optical Q-switch, the highest peak power of 773.8 kW was obtained at a pulse repetition frequency (PRF) of 1 kHz, corresponding to a maximum pulse energy of 3.25 mJ and a pulse width of 4.2ns.

Citation Download Citation

Jiaze Wu, Xiaoming Duan, Yu Ding, and Youlun Ju "Electro-optically Q-switching performance of diode-pumped HoGdVO₄ laser", Proc. SPIE 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 1256538 (12 April 2023); https://doi.org/10.1117/12.2663046

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