High-power deep-ultraviolet light generation at 266 nm from frequency quadrupling of a picosecond pulsed 1064 nm laser with a Nd:YVO₄ amplifier pumped by a 914 nm laser diode

Abstract

We report the generation of picosecond pulsed light at a 266 nm wavelength with an average power of 53 W. We developed a picosecond pulsed 1064 nm laser source with an average power of 261 W, a repetition rate of 1 MHz, and a pulse duration of 14 ps, using a gain-switched DFB laser diode as a seed laser and a 914 nm laser-diode-pumped Nd-doped YVO4 power amplifier. We achieved stable generation of 266 nm light with an average power of 53 W from frequency quadrupling using an LBO and a CLBO crystals. The amplified power of 261 W and the 266 nm average power of 53 W from the 914 nm pumped Nd:YVO4 amplifier are the highest ever reported, to the best of our knowledge.

A 1064 nm laser adaptive limiter with visible light transparency based on one dimensional photonic crystals of LiNbO3 defects

“…1–5 Within these domains, 1064 nm lasers are commonly used due to their availability, maturity, stability and high efficiency. 6 This wavelength, situated within the near-infrared spectrum, is highly suitable for a variety of fields including industrial, medical, and scientific applications. 7 Additionally, 1064 nm solid-state lasers provide advantages such as facile Q-switching for high-energy pulse generation, rendering them valuable in laser engraving, laser weaponry, and materials processing.…”