Ultra-compact Q-switched eye-safe glass laser

Wei Wang; Yong Wang; Siwei Zhang

doi:10.1117/12.2643791

11 August 2022 Ultra-compact Q-switched eye-safe glass laser

Wei Wang, Yong Wang, Siwei Zhang

Proceedings Volume 12307, Second Optics Frontier Conference (OFS 2022); 123070D (2022) https://doi.org/10.1117/12.2643791
Event: Second Optics Frontier Conference 2022, 2022, ONLINE, China

Abstract

Er,Yb co-doped glass has been widely used to generate 1.5-μm Q-switched pulsed lasers, which are in strong demands for such applications as remote sensing telemetry, LiDAR and imaging. Aiming to meet such demands, we developed a ultra-compact and lightweight diode-pumped solid-state laser, which can achieve a Q-switched pulse energy of 1.5 mJ at an eye-safe wavelength of 1534-nm with an optical conversion efficiency of 3.4% under pump power of 22 W in the operating frequency range of 1-10 Hz. In the experiment, a 940-nm semiconductor laser was used to pump an Er,Yb co-doped glass with a saturable absorber (Co2+:Spinel) to realize Q switching. A theoretical model was then developed to simulate and characterize the Er,Yb co-doped glass laser. The model takes into account not only the excited state absorption and up-conversion effects, but also the thermal effects on the laser. The simulation results are in high agreement with the experimental ones.

Citation Download Citation

Wei Wang, Yong Wang, and Siwei Zhang "Ultra-compact Q-switched eye-safe glass laser", Proc. SPIE 12307, Second Optics Frontier Conference (OFS 2022), 123070D (11 August 2022); https://doi.org/10.1117/12.2643791

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