Infrared and Laser Engineering, Volume. 47, Issue 6, 606002(2018)
Experimental investigation on direct generation of high order transverse mode laser
Generation of higher-order Laguerre-Gaussian(LG) beams (vortex beams) and higher-order Hermite-Gaussian(HG) beams directly from the laser was theoretically and experimentally studied. The intensity distribution characteristics of higher-order LG beams and higher-order HG beams were theoretically studied, and the numerical simulation results were given. The Pr:YLF crystal was end-pumped by a 445 nm blue semiconductor laser, under certain conditions, the higher-order LG beam and the higher-order HG beam of wavelength 640 nm was directly delivered from the plano-concave laser cavity. The experimental results show that the higher-order LG beams and the higher-order HG beams from the laser cavity are in agreement with the theoretical simulation. It is shown that the device for generating the higher-order modes is simple. The results of this paper seems very important for generation of higher-order laser beams and their applications.
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Chen Xiafei, Zhang Kailun, Chen Ziyang, Li Xiaoyan, Pu Jixiong. Experimental investigation on direct generation of high order transverse mode laser[J]. Infrared and Laser Engineering, 2018, 47(6): 606002
Category: 激光技术及应用
Received: Jan. 5, 2018
Accepted: Feb. 3, 2018
Published Online: Sep. 8, 2018
The Author Email: Xiafei Chen (191331069@qq.com)