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

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Abstract

We report efficient power scaling of the laser output with an adaptive beam profile from an Nd:YAG dual-cavity master oscillator using a three-stage end-pumped Nd:YVO4 amplifier. We succeed in the fast 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.

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DOI:10.3788/col201715.120801

所属栏目:Geometric optics

基金项目:This work was 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), and the Projects for Research and Development of Police science and Technology (No. Pa-B000001).

收稿日期:2017-08-10

录用日期:2017-10-13

网络出版日期:2017-11-03

作者单位    点击查看

S. H. Noh:Department of Photonics and Nanoelectronics, Hanyang University ERICA, Ansan, 15588, South Korea
D. J. Kim:Department of Photonics and Nanoelectronics, Hanyang University ERICA, Ansan, 15588, South Korea
J. W. Kim:Department of Photonics and Nanoelectronics, Hanyang University ERICA, Ansan, 15588, South Korea

联系人作者:J. W. Kim(jwk7417@hanyang.ac.kr)

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引用该论文

S. H. Noh, D. J. Kim, J. W. Kim, "High power generation of adaptive laser beams in a Nd:YVO4 MOPA system," Chinese Optics Letters 15(12), 120801 (2017)

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