High power single-frequency laser output from a diffusion-bonded monolithic nonplanar Ho:YAG ring oscillator

Haojie Wang; Mingwei Gao

doi:10.1117/12.2541525

12 March 2020 High power single-frequency laser output from a diffusion-bonded monolithic nonplanar Ho:YAG ring oscillator

Haojie Wang, Mingwei Gao

Author Affiliations +

Proceedings Volume 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 1143703 (2020) https://doi.org/10.1117/12.2541525
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

In this paper, an experimental investigation of monolithic diffusion-bonded nonplanar Ho:YAG ring oscillator(NPRO) operated at 2.09μm was presented. A theoretical thermal model for the diffusion-bonded NPRO was established, the thermal effect of the diffusion-bonded Ho:YAG NPRO and un-bonded NPRO were calculated and compared in detail. A diode-pumped Tm-YLF solid-state laser was used to pump the diffusion-bonded Ho:YAG NPRO, a stable singlefrequency output power of up to 12.5W was obtained at 2.09μm with a slope efficiency of 46.3%. The beam quality M²- factors were less than 1.3 in both x- and y- directions.

Citation Download Citation

Haojie Wang and Mingwei Gao "High power single-frequency laser output from a diffusion-bonded monolithic nonplanar Ho:YAG ring oscillator", Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1143703 (12 March 2020); https://doi.org/10.1117/12.2541525

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