1. 100–300 Hz repetition-rate acousto-optic Q-switched 2.79 μm Er:YSGG laser side-pumped by laser-diode
- Author
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Hu Shuwu, Li Wang, Xiong Zhengdong, Wu Xianyou, Wei Meng'en, Cui Qingzhe, Jiang Haihe, Jiang Jiantao, and Cheng Tingqing
- Subjects
Materials science ,Repetition (rhetorical device) ,Laser diode ,business.industry ,Pulse duration ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Laser ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Power (physics) ,law.invention ,Pulse (physics) ,010309 optics ,Crystal ,Optics ,law ,Optical cavity ,0103 physical sciences ,0210 nano-technology ,business - Abstract
An LD-pumped high-repetition-rate Er:YSGG laser utilizing a TeO2 crystal as an acousto-optic Q-switch is proposed and demonstrated. The thermal lensing effect caused by the high-repetition-rate pump is compensated by a plano-convex laser resonator. As a result, a Q-switched 2.79 μm laser with a repetition rate of 100–300 Hz is obtained. When a 100 Hz repetition rate, a 1 mJ pulse energy and a 76 ns pulse duration are employed, the corresponding peak power is 13.2 kW. To the best of our knowledge, this laser offers the highest pulse energy among Q-switched 2.79 μm lasers with pulse repetition rates above one hundred hertz.
- Published
- 2019