Laser & Optoelectronics Progress, Volume. 56, Issue 19, 191403(2019)

Research on Parabolic Band Integrating Mirror for High-Power Large-Width Rectangular Laser Beams

Xiaodong Liu1, Yingxiong Qin1、*, Jie Liu2, Xiahui Tang1, and Bowei Luo1
Author Affiliations
  • 1National Engineering Research Center for Laser Processing, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
  • 2Wuhan WISCO Huagong Laser Large Equipment Co., Ltd., Wuhan, Hubei 430223 , China
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    Figures & Tables(12)
    Principle of linear band integration mirror for rectangular spot
    Principle of parabolic band integration mirror for rectangular spot
    Calculation principle in rotation direction
    Influence of number of segments on uniformity of output spot
    Three-dimensional diagrams of output spots with different numbers of segments. (a) 3 segments; (b) 5 segments; (c) 7 segments
    Parabolic band integration mirror for rectangular spot. (a) Diagrammatic figure; (b) real figure
    100 mm×3.2 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot
    14 mm×3.3 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot
    Experimental equipment
    One-dimensional distributions of spot. (a) Output spot of laser; (b) output spot of integrating mirror
    • Table 1. Parameters of parabolic band integration mirror for 14 mm×3.3 mm rectangular spot

      View table

      Table 1. Parameters of parabolic band integration mirror for 14 mm×3.3 mm rectangular spot

      Parabolic segment numberFocus coordinate /mmLeft end point coordinate /mmRight end point coordinate /mm
      1(751.9303,159.20102)(375.3867,176.12651)(382.32245,182.69638)
      2(780.0554,171.97745)(382.32245,182.69638)(389.3926,189.51724)
      3(794.0951,185.89755)(389.3926,189.51724)(396.4643,196.46428)
      4(801.1046,200.0)(396.4643,196.46428)(403.47382,203.47447)
      5(808.176,213.98083)(403.47382,203.47447)(410.42276,210.54514)
      6(822.3404,228.15417)(410.42276,210.54514)(417.3717,217.73662)
      7(850.72076,243.42018)(417.3717,217.73662)(424.43564,225.1705)
    • Table 2. Parameters of parabolic band integration mirror for 100 mm×3.2 mm rectangular spot

      View table

      Table 2. Parameters of parabolic band integration mirror for 100 mm×3.2 mm rectangular spot

      Parabolic segment numberFocus coordinate /mmLeft end point coordinate /mmRight end point coordinate /mm
      1(455.5179,224.08635)(417.35858,217.88004)(424.85757,225.83057)
      2(446.23444,215.65775)(410.12717,210.34502)(417.35858,217.88004)
      3(437.70215,207.6788)(403.06757,203.11478)(410.12717,210.34502)
      4(429.845,200.0)(396.07144,196.07143)(403.06757,203.11478)
      5(422.84888,192.42545)(388.9467,189.02396)(396.07144,196.07143)
      6(415.37976,184.87997)(381.77625,182.05824)(388.9467,189.02396)
      7(407.40305,177.49763)(374.6794,175.28896)(381.77625,182.05824)
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    Xiaodong Liu, Yingxiong Qin, Jie Liu, Xiahui Tang, Bowei Luo. Research on Parabolic Band Integrating Mirror for High-Power Large-Width Rectangular Laser Beams[J]. Laser & Optoelectronics Progress, 2019, 56(19): 191403

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 10, 2019

    Accepted: Apr. 19, 2019

    Published Online: Oct. 12, 2019

    The Author Email: Qin Yingxiong (qyx@hust.edu.cn)

    DOI:10.3788/LOP56.191403

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