Lightweight short pulse laser for LIDAR

Wei Wang; Yong Wang

doi:10.1117/12.2599754

18 June 2021 Lightweight short pulse laser for LIDAR

Wei Wang, Yong Wang

Proceedings Volume 11850, First Optics Frontier Conference; 1185019 (2021) https://doi.org/10.1117/12.2599754
Event: First Optics Frontier Conference, 2021, Hangzhou, China

Abstract

An ultra-lightweight and compact diode-pumped solid-state laser has been developed targeting the applications of LiDAR in resource exploitation, environmental monitoring, etc. We have achieved Q-switched pulse energy of above 650 μJ at a central wavelength of 1534 nm with an optical conversion efficiency of 3.3% in the operating frequency range of 1-20 Hz at a peak pump power of 10 W. In our experiments, we used a 940-nm semiconductor laser to pump Er,Yb co-doped glass with a saturable absorber (Co:Spinel) to realize passive Q switching. Meanwhile, we have developed a theoretical model for this Er,Yb co-doped glass laser under pulsed pumping. This model was validated in both gain-switching and Q-switching scenarios, taking into account the presence of excited state absorption and up-conversion effects. The simulation results are in excellent agreement with the experimental ones.

Citation Download Citation

Wei Wang and Yong Wang "Lightweight short pulse laser for LIDAR", Proc. SPIE 11850, First Optics Frontier Conference, 1185019 (18 June 2021); https://doi.org/10.1117/12.2599754

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