Watt-level continuous-wave intracavity frequency-doubled Pr:YLF-LBO laser at 320 nm

Yunshan Zhang; Jingyu Zou; Wanxin Zheng; Kai Feng; Bin Xu; Zhenfang Yu

doi:10.3788/COL202119.091406

Journals >Chinese Optics Letters >Volume 19 >Issue 9 >Page 091406 > Article

Chinese Optics Letters
Vol. 19, Issue 9, 091406 (2021)

Watt-level continuous-wave intracavity frequency-doubled Pr:YLF-LBO laser at 320 nm

Yunshan Zhang¹, Jingyu Zou¹, Wanxin Zheng¹, Kai Feng¹, Bin Xu^1、2、*, and Zhenfang Yu³

Author Affiliations

¹Department of Electronic Engineering, Xiamen University, Xiamen 361005, China

²Shenzhen Research Institute, Xiamen University, Shenzhen 518057, China

³Analysis and Test Center of Sichuan Province, Chengdu 610000, China

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DOI: 10.3788/COL202119.091406 Cite this Article Set citation alerts

Yunshan Zhang, Jingyu Zou, Wanxin Zheng, Kai Feng, Bin Xu, Zhenfang Yu. Watt-level continuous-wave intracavity frequency-doubled Pr:YLF-LBO laser at 320 nm[J]. Chinese Optics Letters, 2021, 19(9): 091406 Copy Citation Text

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Abstract

We report on diode-pumped continuous-wave Pr-doped yttrium lithium fluoride (Pr:YLF) laser and its frequency doubling to 320 nm. The maximum output power of the 640 nm fundamental wave reached 3.44 W with a slope efficiency of about 48.3%. Using a type-I phase-matched lithium triborate (LBO) crystal as a frequency doubler, we have achieved 320 nm ultraviolet radiation with a maximum output power of 1.01 W, which is the highest power ever reported under diode pumping, to the best of our knowledge.

Keywords

continuous wave frequency doubling Pr:YLF crystal ultraviolet