摘要
We demonstrate a three-nanosecond equidistant sub-pulse multi-step Q-switched Nd:Y3 Al5 O12(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 m J, 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.
作者
Jie Mao
Chao Wang
Tixiang Hong
Yongji Yu
毛洁;王超;洪梯翔;于永吉(Jilin Key Laboratory of Solid Laser Technology and Application,School of Science,Changchun University of Science and Technology,Changchun 130022,China)
基金
supported by the National Natural Science Foundation of China (NSFC)(No.11974060)
the Natural Science Foundation of Jilin Province (No.20190201266JC)。
