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

Optics Express
Kun LiuYing Zhang

Abstract

We demonstrate an all-solid-state deep-ultraviolet (DUV) laser based on the frequency-quadrupling of a 1 µm, 1.2 ps, Yb: YAG Innoslab solid-state laser at a 10 kHz repetition rate, using LBO and BBO as second-harmonic generation and fourth-harmonic generation crystals, respectively. The DUV laser delivers 20 W, 2.0 mJ, 665 fs, 258 nm DUV pulses, with an overall conversion efficiency of ∼8.7% from 1 µm to DUV. The corresponding peak power of DUV pulses is up to 3 GW, which, to the best of our knowledge, is highest in reported kHz-rate all-solid-state DUV sources driven at 1 µm wavelength.

References

Jul 19, 2011·Optics Letters·Qiang LiuNing Ye
Nov 18, 2014·Optics Express·Lirong WangChuangtian Chen
Feb 14, 2015·Optics Letters·Chun-Lin ChangKyung-Han Hong
Jul 15, 2017·Optics Letters·Michael MüllerAndreas Tünnermann

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