Experimental research on LD pumped trapezoidal Nd:YAG laser

Qi-Feng Wu; Jia-Wei Fan; Tong-Yu Dai; You-Lun Ju

doi:10.1117/12.2583974

2 December 2020 Experimental research on LD pumped trapezoidal Nd:YAG laser

Qi-Feng Wu, Jia-Wei Fan, Tong-Yu Dai, You-Lun Ju

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117170A (2020) https://doi.org/10.1117/12.2583974
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

An 808 nm LD end-pumped trapezoidal 1.064μm Nd:YAG laser was demonstrated in this paper. The advantage of using a trapezoidal crystal was that under the same volume of the gain medium, the length of the gain medium was significantly increased, which increased the output power. The maximum continuous wave average power of 2.16W was obtained with the pump power of 30.5W, and the slope efficiency was 13.75%. After adding an acousto-optic Q switch with selective polarization function in the cavity, the pulse energy of 1.05 mJ, the pulse width of 80.7 ns at the PRF of 1 kHz was obtained. And the output laser was s-polarized. The beam quality factor was measured as M²~2.95.

Citation Download Citation

Qi-Feng Wu, Jia-Wei Fan, Tong-Yu Dai, and You-Lun Ju "Experimental research on LD pumped trapezoidal Nd:YAG laser", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117170A (2 December 2020); https://doi.org/10.1117/12.2583974

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