Three-nanosecond-equal interval sub-pulse Nd∶YAG laser with multi-step active Q-switching

• 作者: Jie Mao Chao Wang Tixiang Hong Yongji Yu
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: Lasers, Optical Amplifiers, and Laser Optics
• 页码范围: 43-47
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202119.071404

摘要

We demonstrate a three-nanosecond equidistant sub-pulse multi-step Q-switched Nd∶Y3Al5O12[Nd∶YAG]laser.In the time interval of 100-1000 ns,three pulses with the same nanosecond interval and the same peak power are obtained at the pulse width of 24 ns,28 ns,and 36.6 ns,respectively.The energy is 32.5 mJ,and the optical efficiency is 10.8％.The multi-step Q-switched method does not require the insertion of other optical elements into the traditional Q-switched laser,and it is very suitable to obtain pulse group output with several nanosecond pulse intervals.