High-energy gradient doped  Yb:YAG thin slab laser amplifier

A. V. Starobor; D. A. Kuzin; I. I. Kuznetsov; O. V. Palashov

doi:10.1117/12.2687175

27 November 2023 High-energy gradient doped Yb:YAG thin slab laser amplifier

A. V. Starobor, D. A. Kuzin, I. I. Kuznetsov, O. V. Palashov

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 1276006 (2023) https://doi.org/10.1117/12.2687175
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

A concept of compact, scalable and reliable solid-state amplifier based on thin slab is proposed. It combines the following features: single pass pump and signal propagation without internal reflections; use of a gradient doped thin-slab AE; beam guiding effect pre-compensation. The direct passage of the radiation allows to obtain a high quality of the beam (M2⪅1.4). Thin slab geometry and gradient doping provide excellent heat dissipation and low heating (30 °C at 500 W pumping power). The amplification of stretched and pre-amplified femtosecond radiation reached 3.6 (with input of 6 mJ) at a pump power of 500 W, so output energy was 22 mJ at 1.5kHz. A further increase in the output energy is possible according to calculations, up to 100 mJ, which is limited by the breakdown threshold of the output end at a pump power of 1 kW.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

A. V. Starobor, D. A. Kuzin, I. I. Kuznetsov, and O. V. Palashov "High-energy gradient doped Yb:YAG thin slab laser amplifier", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 1276006 (27 November 2023); https://doi.org/10.1117/12.2687175

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