Abstract

We report a 10 kHz, 10.5 W deep ultraviolet (DUV) laser at 258 nm with a pulse duration of 3 ns by fourth-harmonic generation (FHG) in a ${\mathrm{CsLiB}}_6{\mathrm{O}}_{10}$ crystal with high-conversion efficiency. The fundamental laser is at 1030 nm with 35 W output power consisting of a Yb:YAG ceramics thin rod amplifier. The ${\mathrm{M}}^2$ of the DUV laser was confirmed to be $<1.5$. To the best of our knowledge, this is the best beam quality for DUV laser power higher than 10 W generated by FHG of a solid-state laser, as well as the highest conversion efficiency of 31% from infrared to DUV so far.

© 2017 Optical Society of America

High-power DUV picosecond pulse laser with a gain-switched-LD-seeded MOPA and large CLBO crystal

Kenta Kohno, Yosuke Orii, Hisashi Sawada, Daisuke Okuyama, Kimihiko Shibuya, Seiji Shimizu, Masashi Yoshimura, Yusuke Mori, Junichi Nishimae, and George Okada
Opt. Lett. 45(8) 2351-2354 (2020)

Picosecond green and deep ultraviolet pulses generated by a high-power 100 kHz thin-disk laser

Ondřej Novák, Hana Turčičová, Martin Smrž, Taisuke Miura, Akira Endo, and Tomáš Mocek
Opt. Lett. 41(22) 5210-5213 (2016)

High-average-power femtosecond laser at 258 nm

Michael Müller, Arno Klenke, Thomas Gottschall, Robert Klas, Carolin Rothhardt, Stefan Demmler, Jan Rothhardt, Jens Limpert, and Andreas Tünnermann
Opt. Lett. 42(14) 2826-2829 (2017)

20 W, 2 mJ, sub-ps, 258 nm all-solid-state deep-ultraviolet laser with up to 3 GW peak power

Kun Liu, Hao Li, Shizhen Qu, Houkun Liang, Qi Jie Wang, and Ying Zhang
Opt. Express 28(12) 18360-18367 (2020)

Multi-mJ, kHz, ps deep-ultraviolet source

Chun-Lin Chang, Peter Krogen, Houkun Liang, Gregory J. Stein, Jeffrey Moses, Chien-Jen Lai, Jonathas P. Siqueira, Luis E. Zapata, Franz. X. Kärtner, and Kyung-Han Hong
Opt. Lett. 40(4) 665-668 (2015)