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

S. H. Noh; D. J. Kim; J. W. Kim

doi:10.3788/COL201715.120801

Journals >Chinese Optics Letters >Volume 15 >Issue 12 >Page 120801 > Article

Chinese Optics Letters
Vol. 15, Issue 12, 120801 (2017)

High power generation of adaptive laser beams in a Nd:YVO₄ MOPA system | On the Cover

S. H. Noh, D. J. Kim, and J. W. Kim^*

Author Affiliations

Department of Photonics and Nanoelectronics, Hanyang University ERICA, Ansan, 15588, South Korea

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DOI: 10.3788/COL201715.120801 Cite this Article Set citation alerts

S. H. Noh, D. J. Kim, J. W. Kim, "High power generation of adaptive laser beams in a Nd:YVO₄ MOPA system," Chin. Opt. Lett. 15, 120801 (2017) Copy Citation Text

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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 : {YVO}_{4}

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.