AUTHOR=Ran Qiandong , Short Joel Stephen , Wang Qi Jie , Li Hao 

TITLE=A 206-nm all-solid-state deep-ultraviolet laser with 291 MW peak power

JOURNAL=Frontiers in Physics

VOLUME=Volume 10 - 2022

YEAR=2023

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.1118917

DOI=10.3389/fphy.2022.1118917

ISSN=2296-424X

ABSTRACT=We successfully demonstrate the generation of an all-solid-state deep-ultraviolet (DUV) laser at 206 nm through the 5th (4+1) harmonic generation using a 197 W, 10 kHz 1.2 ps 1030 nm Yb:YAG laser. The DUV laser delivers 180 µJ ~582 fs pulses with a peak power of 291 MW, which, to the best of our knowledge, is the highest peak power at 206 nm ever produced by all-solid-sate DUV laser sources driven at 1 um wavelength. This corresponds to a single order improvement from early state-of-the-art record reported in literature.