8 mJ 355 nm 1 kHz burst-mode picosecond laser systems. (1st April 2022)

• Record Type: Journal Article
• Authors: Wang, C L; Chen, M; Xiang, H P; Zhang, Z Y; Tao, R Q
• Is Part Of: Laser physics. Volume 32:Number 4(2022)
• Publication Date: 2022-04-01
• Subjects: harmonic generation and mixing -- lasers -- solid-state lasers -- ultraviolet; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/ac5b76
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: This paper presents an 8 mJ 355 nm 1 kHz burst-mode picosecond laser system, where the energy of each subpulse in the burst mode is 2 mJ. Under optimal operational conditions, a noncritical phase-matched LiB3 O5 (LBO) crystal and a type-II angle- and phase-matched LBO crystal are used as the second- and third-harmonic generation crystals, respectively. The largest conversion efficiency from 1064 nm to 355 nm was 38%, and the highest output power at 355 nm was 8 W; further, the beam quality was measured as M x 2 = 2.46 and M y 2 = 2.84 .