Watt-level Pr~(3+):YLF deep red laser pumped by a fiber-coupled blue LD module or a single-emitter blue LD |
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| Authors: | Miaomao He Sheng Chen Quanxin Na Shaojuan Luo Haiyong Zhu Ying Li Changwen Xu Dianyuan Fan |
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| Affiliation: | (International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education,Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China;Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province,Shenzhen University,Shenzhen 518060,China;College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou 325035,China) |
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| Abstract: | A power-scaled laser operation of Pr:YLi F_4(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. |
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