Watt-level Pr3+:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD

Miaomao He; Sheng Chen; Quanxin Na; Shaojuan Luo; Haiyong Zhu; Ying Li; Changwen Xu; Dianyuan Fan

doi:10.3788/COL202018.011405

Journals >Chinese Optics Letters >Volume 18 >Issue 1 >Page 011405 > Article

Chinese Optics Letters
Vol. 18, Issue 1, 011405 (2020)

Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD

Miaomao He¹, Sheng Chen¹, Quanxin Na¹, Shaojuan Luo¹, Haiyong Zhu³, Ying Li^1、2, Changwen Xu^1、2、*, and Dianyuan Fan^1、2

Author Affiliations

¹International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China

²Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen University, Shenzhen 518060, China

³College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China

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DOI: 10.3788/COL202018.011405 Cite this Article Set citation alerts

Miaomao He, Sheng Chen, Quanxin Na, Shaojuan Luo, Haiyong Zhu, Ying Li, Changwen Xu, Dianyuan Fan. Watt-level Pr³⁺:YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD[J]. Chinese Optics Letters, 2020, 18(1): 011405 Copy Citation Text

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Abstract

A power-scaled laser operation of Pr:YLiF₄ (YLF) crystal at 720.9 nm pumped by a 443.6 nm laser diode (LD) module was demonstrated. The 20 W module was used to pump the Pr:YLF crystal, and a maximum output power of 3.03 W with slope efficiency of 30.04% was obtained. In addition, a 5 W blue LD was also used to pump the Pr:YLF laser, and a maximum output power of 0.72 W was obtained at room temperature. The output power was limited by the wavelength mismatch between the single-emitter LD and the absorption peak of the crystal.

Keywords

diode-pumped lasers rare earth and transition metal solid-state lasers visible lasers