Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology

doi:10.3788/COL202321.031405

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	Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology
	J. Han; J. Zhang; X. Shan; Y. Zhang; H. Peng; L. Qin and L. Wang
	2023
发表期刊	Chinese Optics Letters
ISSN	16717694
卷号	21 期号:3
摘要	With the rapid development of laser technology, laser as the light source of night vision illuminating can realize long-distance and clear imaging, which has been widely used in laser active illuminating field. A high-power diode laser with a wavelength of 808 nm was designed as the laser active illuminating source, and the output power of no less than 100 W was obtained by spatial beam multiplexing, polarization multiplexing, and high efficiency fiber coupling techniques. In view of the beam homogenization of illuminating source, a novel beam homogenization system based on waveguide is proposed in this work. A square spot with a horizontal divergence angle of 40°, a vertical divergence angle of 10°, and an illuminating power ratio of 4:1 was obtained by a collimating lens. Comparing with the traditional circular illuminating beam, the square illuminating beam can match the illuminating angle of CCD camera better, and the energy utilization rate is higher. In addition, by optimizing the structure of waveguide and collimating lens, the illuminating angle can be changed to meet the illuminating requirements under different conditions theoretically. © 2023 Chinese Optics Letters.
DOI	10.3788/COL202321.031405
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67506
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Han,J. Zhang,X. Shan,et al. Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology[J]. Chinese Optics Letters,2023,21(3).
APA	J. Han,J. Zhang,X. Shan,Y. Zhang,H. Peng,&L. Qin and L. Wang.(2023).Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology.Chinese Optics Letters,21(3).
MLA	J. Han,et al."Beam homogenization structure for a laser illuminator design based on diode laser beam combining technology".Chinese Optics Letters 21.3(2023).

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