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Chin. Opt. Lett.
 Home  List of Issues    Issue 12 , Vol. 15 , 2017    10.3788/COL201715.120801


High power generation of adaptive laser beams in a Nd:YVO4 MOPA system
S. H. Noh, D. J. Kim, and J. W. Kim
Department of Photonics and Nanoelectronics, [Hanyang University ERICA], Ansan, 15588, South Korea

Chin. Opt. Lett., 2017, 15(12): pp.120801

DOI:10.3788/COL201715.120801
Topic:Geometric optics
Keywords(OCIS Code): 080.4865  140.0140  140.3280  140.3300  140.3410  140.3530  

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.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2017/8/10
Accepted:2017/10/13
Posted online:2017/11/3

Get Citation: S. H. Noh, D. J. Kim, and J. W. Kim, "High power generation of adaptive laser beams in a Nd:YVO4 MOPA system," Chin. Opt. Lett. 15(12), 120801(2017)

Note: 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).



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