Author Affiliations
Abstract
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
A high pulse repetition frequency (PRF), high energy Ho:YAG laser directly pumped by a Tm-doped fiber laser and its application to a mid-infrared ZnGeP2 (ZGP) optical parametric oscillator (OPO) is demonstrated. The maximum polarized 2.09 μm laser pulse energy is 13.46 mJ at a PRF of 1 kHz. The corresponding peak power reaches 504 kW. In a double-resonant ZGP-OPO, a maximum mid-infrared laser pulse energy of 1.25 mJ, corresponding to a peak power of 79 kW, is accomplished at a PRF of 3 kHz. The nonlinear conversion efficiency reaches 41.7%. The nonlinear slope efficiency reaches 53.3%.
140.3070 Infrared and far-infrared lasers 140.3540 Lasers, Q-switched 140.4480 Optical amplifiers 140.5680 Rare earth and transition metal solid-state lasers Chinese Optics Letters
2017, 15(9): 091402
《制造用紫外激光器》国家重点研发计划(项目编号：2017YFB1104500)旨在针对增材制造和激光制造需求, 以制造用紫外激光器的核心关键技术突破、产品研发及产业化为主线, 针对高功率、高重复频率355/266 nm紫外激光的产生(图1)、紫外非线性光学三硼酸锂(LBO)和偏硼酸钡(BBO)晶体性能的提升、高功率紫外激光的产业化以及制造用紫外激光器的应用示范等开展研究, 突破制造用紫外激光理论、设计、产业化以及应用的技术瓶颈, 实现工业用紫外激光器产品化并建立生产线, 对促进我国激光高端精细加工并实现“中国芯”具有重要意义。
激光与光电子学进展
2017, 54(12): 123601
