1 深圳大学二维材料光电科技国际合作联合实验室，广东 深圳 518060
2 鹏城实验室，广东 深圳 518060
报道了一种1.85 μm亚纳秒脉宽的Tm∶GdVO4被动锁模激光器。通过使用商用半导体可饱和吸收镜（SESAM）和高透过率的输出耦合镜（OCs），实现了Tm∶GdVO4短波段、亚纳秒脉宽的激光输出。对于连续波（CW）运转，当使用透过率分别为10%、20%和30%的不同OCs时，激光输出功率均超过1 W，在1844、1850、1851、1861、1865 nm波长上分别产生了激光振荡。对于连续波锁模（CWML）运转，通过使用上述不同OCs，均实现了稳定的输出，工作波长均位于1851.6 nm附近，光谱宽度始终不高于光谱仪0.05 nm的分辨率，输出脉宽分别为474、752、651 ps。其中，当使用透过率为30%的OC时，可实现320 mW的最大平均输出功率。
激光器 固体激光器 被动锁模 半导体可饱和吸收镜 亚皮秒 二极管泵浦激光器 Tm∶GdVO4激光器 中国激光
2023, 50(22): 2201004
Author Affiliations
Abstract
1 International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
2 Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen University, Shenzhen 518060, China
3 College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
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.
rare earth and transition metal solid-state lasers visible lasers diode-pumped lasers Chinese Optics Letters
2020, 18(1): 011405
激光与光电子学进展
2010, 47(3): 03SC03
