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

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Abstract

In this paper, the research work of two-dimensional 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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Authors and Affiliations

  1. School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China

    Yuchen Song, Yunfeng Chen, Jianguo Xin & Teng Sun

Authors
  1. Yuchen Song
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  2. Yunfeng Chen
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  3. Jianguo Xin
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  4. Teng Sun
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Corresponding author

Correspondence to Jianguo Xin.

Additional information

Yuchen Song, student, Beijing Institute of Technology. He studied in Beijing Institute of Technology, and received the B.Sc. degree in optical information science and technology, then also studied in Beijing Institute of Technology for Master degree in electronic science and technology. His research interests focus on laser diode pumped solid-state laser.

Yunfeng Chen, student, Beijing Institute of Technology. He studied in Beijing Institute of Technology, and received the B.Sc. degree in metallurgical engineering, then studied in Beijing Institute of Technology for Master degree in electronic science and technology. His research interests focus on laser diode pumped solid-state laser.

Dr. Jianguo Xin, professor, Beijing Institute of Technology. He received the B.Sc. degree from Beijing Institute of Technology, and Ph.D. degree from Hull University in laser and optoelectronic technology. In 1995, he got the National Science Foundation for Distinguished Young Scholars. In 2001, he has become a Distinguished Professor of Cheung Kong Scholars Program. He has published more than 100 papers. His research interests focus on novel laser device and technology.

Teng Sun, student, Beijing Institute of Technology. He studied in Beijing Institute of Technology for Ph.D. in electronic science and technology since 2013. His research interests focus on passive Qswitch laser and pulsed laser deposition technology.

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Song, Y., Chen, Y., Xin, J. et al. Two-dimensional beam shaping and homogenization of high power laser diode stack with rectangular waveguide. Front. Optoelectron. 12, 311–316 (2019). https://doi.org/10.1007/s12200-018-0831-z

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  • DOI: https://doi.org/10.1007/s12200-018-0831-z

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