用于3D打印的高功率蓝紫光半导体激光器及光场匀化技术的研究
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1.长春理工大学;2.中国科学院半导体研究所

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基金项目:

国家重点研发计划项目(2016YFB0401804),北京市科技成果转化项目(Z171100002317016)资助课题


High power blue violet laser diode and optical field homogenization technology for 3D printing
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Affiliation:

Institute of Semiconductors,Chinese Academy of Sciences

Fund Project:

National Key R&D Project (2016YFB0401804), Beijing Science and Technology Achievement Transformation Project (Z171100002317016)

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    摘要:

    摘要:本文研究了用于高精度3D打印的高功率蓝紫光半导体激光器,及激光整形匀化光学系统的设计。采用非球面透镜将28个输出功率为350 mW的蓝紫光半导体激光器,分别耦合进纤芯直径400 μm、数值孔径0.22的光纤,光纤经捆绑合束进行功率扩展,输出功率达8.1 W。输出功率6.9W时对激光稳定性进行测试,2个小时内RMS功率不稳定性为±0.3%。利用Zemax软件设计了一组复眼透镜对激光光场进行整形匀化,模拟结果为均匀度从48%提高到86%,实验测量光场均匀度达到84.4%,获得了用于3D打印以及激光医疗等领域的高功率、高光场均匀度的蓝紫光半导体激光光源。

    Abstract:

    Abstract: In this paper, a high-power blue violet laser diode was studied and a homogenization system was designed for high precision 3D printing. Every blue violet diode laser with output power of 350 mW was coupled into the fiber with a core diameter of 400 μm and numerical aperture of 0.22 using an aspherical lens. 28 fibers were mechanically bundled for power expansion. The laser output power of 8.1 W was achieved. When the output power was 6.9 W, the stability of the laser was measured. The RMS power instability was ±0.3% within 2 h. A set of fly eye lenses were designed to homogenize the laser field using Zemax software. The simulation result was that the uniformity of laser field was increased from 48% to 86%. After laser homogenization experiment, the uniformity of the laser field reached 84.4%. Blue violet laser source with high power and high field uniformity was successfully obtained for 3D printing and laser medical treatment.

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  • 收稿日期:2018-06-21
  • 最后修改日期:2018-06-21
  • 录用日期:2018-09-07
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