High-Efficient Nd:YLF Q-Switched Laser Operating at 523.5 nm
LU Ting-Ting, MA Jian, HUANG Min-Jie, YANG Qi, ZHU Xiao-Lei**, CHEN Wei-Biao
Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Abstract：An intracavity frequency doubling electro-optically Q-switched Nd:YLF 523.5 nm laser is developed. An appropriate cylindrical lens is employed in the oscillator to optimize the mode size and to improve the stability of the cavity. With an incident pump pulse energy of 58 mJ at a 500 Hz repetition rate, a green pulse energy of 16.8 mJ at 523.5 nm is obtained, corresponding to an optical-optical conversion efficiency of 29%. The pulse width is less than 8 ns, and the beam quality factor is M2≤2.5.
2014, Vol. 31 
