High-energy, hundred-picosecond pulsed 266 nm mid-ultraviolet generation by a barium borate crystal

Ning Wen; Nan Wang; Nan Zong; Xue-Chun Lin; Hong-Wei Gao; Yong Bo; Qin-Jun Peng; Da-Fu Cui; Zu-Yan Xu

doi:10.1017/hpl.2023.22

High Power Laser Science and Engineering (Jan 2023)

High-energy, hundred-picosecond pulsed 266 nm mid-ultraviolet generation by a barium borate crystal

Ning Wen,
Nan Wang,
Nan Zong,
Xue-Chun Lin,
Hong-Wei Gao,
Yong Bo,
Qin-Jun Peng,
Da-Fu Cui,
Zu-Yan Xu

Affiliations

Ning Wen: ORCiD; Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China University of Chinese Academy of Sciences, Beijing, China
Nan Wang: Laboratory of All-Solid-State Light Source, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Nan Zong: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China
Xue-Chun Lin: Laboratory of All-Solid-State Light Source, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
Hong-Wei Gao: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China
Yong Bo: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China
Qin-Jun Peng: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China
Da-Fu Cui: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China
Zu-Yan Xu: Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Jinan, China

DOI: https://doi.org/10.1017/hpl.2023.22
Journal volume & issue: Vol. 11

Abstract

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We present a high-energy, hundred-picosecond (ps) pulsed mid-ultraviolet solid-state laser at 266 nm by a direct second harmonic generation (SHG) in a barium borate (BaB2O4, BBO) nonlinear crystal. The green pump source is a 710 mJ, 330 ps pulsed laser at a wavelength of 532 nm with a repetition rate of 1 Hz. Under a green pump energy of 710 mJ, a maximum output energy of 253.3 mJ at 266 nm is achieved with 250 ps pulse duration resulting in a peak power of more than 1 GW, corresponding to an SHG conversion efficiency of 35.7% from 532 to 266 nm. The experimental data were well consistent with the theoretical prediction. To the best of our knowledge, this laser exhibits both the highest output energy and highest peak power ever achieved in a hundred-ps/ps regime at 266 nm for BBO-SHG.

Published in High Power Laser Science and Engineering

ISSN: 2095-4719 (Print); 2052-3289 (Online)
Publisher: Cambridge University Press
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://www.cambridge.org/core/journals/high-power-laser-science-and-engineering

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