Optical pumping for high-power ultrashort LWIR gas lasers

Yu-hsin Chen; Victor Hasson; Daniel Gordon; Martin Richardson

doi:10.1117/12.3012593

11 April 2024 Optical pumping for high-power ultrashort LWIR gas lasers

Yu-hsin Chen, Victor Hasson, Daniel Gordon, Martin Richardson

Proceedings Volume 12939, High-Power Laser Ablation VIII; 129390G (2024) https://doi.org/10.1117/12.3012593
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States

Abstract

Long-wave infrared (LWIR) lasers based on high-voltage pulsed discharges in the high-pressure CO₂ gas have reached multi-TW peak power. As optical pumping appears to be a more viable pathway toward ultrahigh power and high repetition rate, we investigated multiple apparatus including direct and indirect optical pumping. Indirect optical pumping through stimulated Raman scattering in N₂ gas could be efficient, and is relatively insensitive to the pump wavelength. On the other hand, laser technologies for direct optical pumping have higher maturity levels at wavelengths of ~ 1.4 μm and ~ 2.0 μm among multiple excitation bands in the mid-IR wavelength.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yu-hsin Chen, Victor Hasson, Daniel Gordon, and Martin Richardson "Optical pumping for high-power ultrashort LWIR gas lasers", Proc. SPIE 12939, High-Power Laser Ablation VIII, 129390G (11 April 2024); https://doi.org/10.1117/12.3012593

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