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  • Received: May. 7, 2018

    Accepted: Jun. 26, 2018

    Posted: Mar. 1, 2019

    Published Online: Nov. 14, 2019

    The Author Email: XIN Jianguo (xinjgbit@163.com)

    DOI: 10.1007/s12200-018-0831-z

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    Yuchen SONG, Yunfeng CHEN, Jianguo XIN, Teng SUN. Two-dimensional beam shaping and homogenization of high power laser diode stack with rectangular waveguide[J]. Frontiers of Optoelectronics, 2019, 12(3): 311

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Frontiers of Optoelectronics, Vol. 12, Issue 3, 311 (2019)

Two-dimensional beam shaping and homogenization of high power laser diode stack with rectangular waveguide

Yuchen SONG, Yunfeng CHEN, Jianguo XIN*, and Teng SUN

Author Affiliations

  • School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

Abstract

In this paper, the research work of twodimensional beam shaping and homogenization of high power laser diode (LD) stack by a rectangular waveguide is presented. Both the theoretical simulation and experiment results have shown that the diode stack beam can be shaped into a uniform square spot with a dimension of 10 mm × 10 mm and the non-uniformity less than 5% along both directions of slow axis and fast axis, the shaped beam has a uniform pumping depth over 10 mm, which is well to be used for a rectangular laser medium end pumping.

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