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

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2020,（1）
• 页码范围: 59-63
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202018.011405

摘要

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.