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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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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (15)
    Cited By (5)
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    Figures & Tables(12)
    Principle of linear band integration mirror for rectangular spot

    Fig. 1. Principle of linear band integration mirror for rectangular spot

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    Principle of parabolic band integration mirror for rectangular spot

    Fig. 2. Principle of parabolic band integration mirror for rectangular spot

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    Calculation principle in rotation direction

    Fig. 3. Calculation principle in rotation direction

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    Influence of number of segments on uniformity of output spot

    Fig. 4. Influence of number of segments on uniformity of output spot

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    Three-dimensional diagrams of output spots with different numbers of segments. (a) 3 segments; (b) 5 segments; (c) 7 segments

    Fig. 5. Three-dimensional diagrams of output spots with different numbers of segments. (a) 3 segments; (b) 5 segments; (c) 7 segments

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    Parabolic band integration mirror for rectangular spot. (a) Diagrammatic figure; (b) real figure

    Fig. 6. Parabolic band integration mirror for rectangular spot. (a) Diagrammatic figure; (b) real figure

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    100 mm×3.2 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot

    Fig. 7. 100 mm×3.2 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot

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    14 mm×3.3 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot

    Fig. 8. 14 mm×3.3 mm output spot. (a) Rotation direction; (b) integrating direction; (c) three-dimensional output spot

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    Experimental equipment

    Fig. 9. Experimental equipment

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    One-dimensional distributions of spot. (a) Output spot of laser; (b) output spot of integrating mirror

    Fig. 10. One-dimensional distributions of spot. (a) Output spot of laser; (b) output spot of integrating mirror

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

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      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

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      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: Yingxiong Qin (qyx@hust.edu.cn)

    DOI:10.3788/LOP56.191403

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology