Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity

doi:10.1364/AO.389992

	Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity
	Liu, Liwei 1,2; Shi, Lifang 1; Cao, Axiu 1; Pang, Hui 1; Yan, Wei 1; Pang, Yingfei 1; Xue, Li 1; Liu, Wenjing 1; Deng, Qiling 1
刊名	Applied Optics
	2020-06-20
卷号	59 期号:18 页码:5348-5357
ISSN号	1559-128X
DOI	10.1364/AO.389992
文献子类	期刊论文
英文摘要	Soft-edge apertures can be used to suppress the diffraction effect to achieve high beam quality. In this study, an optimal design theory was proposed to design a serrated soft-edge aperture (SSA) that could produce a beam with high light energy utilization efficiency and uniformity. Two parameters of the peak-to-average ratio (PAR) and the light energy utilization efficiency were introduced as the criteria for evaluating the soft-edge aperture (SA) performance. By analyzing the influence of the shape, number, and height of the serrated structure on the beam propagation performance, the relationship between the PAR, light energy utilization efficiency, and the structural parameters of the aperture were established. After that, an optimal design method of the SSA was proposed, based on the theory of Fresnel diffraction. The designed SSA was fabricated by lithography, and an optical configuration was constructed to test the effect of the aperture. In the experiment, the light energy utilization efficiency is greater than 92%, the PAR is less than 1.4, and the root mean square error of the PAR curve is 0.3502, indicating that the beam maintains high light energy utilization efficiency and uniformity during propagation. © 2020 Optical Society of America.
出版地	WASHINGTON
WOS关键词	HIGH-POWER INSTALLATIONS ; LASER-BEAM ; SERRATED-APERTURE ; DIFFRACTION ; IMPROVEMENTS ; APODIZATION
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000547515500001
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10033]
专题	环境光学研究院
作者单位	1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	Liu, Liwei,Shi, Lifang,Cao, Axiu,et al. Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity[J]. Applied Optics,2020,59(18):5348-5357.
APA	Liu, Liwei.,Shi, Lifang.,Cao, Axiu.,Pang, Hui.,Yan, Wei.,...&Deng, Qiling.(2020).Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity.Applied Optics,59(18),5348-5357.
MLA	Liu, Liwei,et al."Design and experiment of a soft-edge aperture with high light energy utilization efficiency and uniformity".Applied Optics 59.18(2020):5348-5357.