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Optical Engineering

Design of pump beam delivering optical system and doped YAG length to minimize the wavefront distortion in a high-power Nd:YAG zigzag slab laser
Author(s): Jae Sung Shin; Yong-Ho Cha; Yonghee Kim; Gwon Lim; Byung Heon Cha; Hyeon Cheor Lee; Sangin Kim; Hyun Tae Kim
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Paper Abstract

An end-pumped high-power Nd:YAG zigzag slab continuous wave laser amplifier was designed through a computational simulation to minimize the wavefront distortion of the output laser beam. The pump beam delivering optical system was optimized with an acylindrical slow-axis lens to lower the distortion of nonzigzag propagation for the beam height axis. In addition, the wavefront distortion of the zigzag propagation for the beam width axis was studied and minimized by slightly changing the doped YAG length. The simulation results of the final design showed a peak-to-valley optical phase difference ( OPD P V ) of 0.83    μ m and a very low beam quality of 1.19 × diffraction limit, even with a total pump power of 10 kW.

Paper Details

Date Published: 13 January 2017
PDF: 6 pages
Opt. Eng. 56(1) 016109 doi: 10.1117/1.OE.56.1.016109
Published in: Optical Engineering Volume 56, Issue 1
Show Author Affiliations
Jae Sung Shin, Korea Atomic Energy Research Institute (Korea, Republic of)
Yong-Ho Cha, Korea Atomic Energy Research Institute (Korea, Republic of)
Yonghee Kim, Korea Atomic Energy Research Institute (Korea, Republic of)
Gwon Lim, Korea Atomic Energy Research Institute (Korea, Republic of)
Byung Heon Cha, Korea Atomic Energy Research Institute (Korea, Republic of)
Hyeon Cheor Lee, Hanwha Defense Systems Co., Ltd. (Korea, Republic of)
Sangin Kim, Hanwha Defense Systems Co., Ltd. (Korea, Republic of)
Hyun Tae Kim, Hanwha Defense Systems (Korea, Republic of)


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