High power generation of adaptive laser beams in a Nd：YVO4 MOPA system  

作　　者：S. H. Noh D. J. Kim J. W. Kim 

机构地区：[1]Department of Photonics and Nanoelectronics, Hanyang University ERICA, Ansan, 15588, South Korea

出　　处：《Chinese Optics Letters》2017年第12期24-28,共5页中国光学快报（英文版）

基　　金：supported by the National Research Foundation of Korea(NRF)(No.501100003725);the Basic Science Research Program(No.NRF-2014R1A1A2A16053885);the Korean National Police Agency(No.501100003600);the Projects for Research and Development of Police science and Technology(No.Pa-B000001)

摘　　要：We report efficient power scaling of the laser output with an adaptive bemn profile from an Nd：YAG dual-cavity master oscillator using a three-stage end-pumped Nd：YVO4 amplifier. We succeed ill the last switching of an excited laser mode by modulating an acousto-optic modulator loss in a dual-cavity master oscillator, thereby achieving temporal modulation of the output beam profile. The outputs from the master oscillator are amplified via a three-stage power amplifier yielding 36.6, 40.5, and 45.4 W of the maximum output at 116.8 W of incident pump power for the transverse electromagnetic, Laguerre-Gaussian, and quasi-top-hat beam, respectively. The prospects for further power scaling and applications via the dual-cavity master-oscillator power-amplifier （MOPA） system are considered.We report efficient power scaling of the laser output with an adaptive bemn profile from an Nd：YAG dual-cavity master oscillator using a three-stage end-pumped Nd：YVO4 amplifier. We succeed ill the last switching of an excited laser mode by modulating an acousto-optic modulator loss in a dual-cavity master oscillator, thereby achieving temporal modulation of the output beam profile. The outputs from the master oscillator are amplified via a three-stage power amplifier yielding 36.6, 40.5, and 45.4 W of the maximum output at 116.8 W of incident pump power for the transverse electromagnetic, Laguerre-Gaussian, and quasi-top-hat beam, respectively. The prospects for further power scaling and applications via the dual-cavity master-oscillator power-amplifier （MOPA） system are considered.

关 键 词：High power generation of adaptive laser beams in a Nd:YVO4 MOPA system ND 

分 类 号：TN24[电子电信—物理电子学]