Investigation of speckle suppression beyond human eye sensitivity by using a passive multimode fiber and a multimode fiber bundle

被引：16
作者：
Lapchuk, Anatoly [1 ,2 ]
Le, Zichun [1 ]
Guo, Yanyu [1 ]
Dai, Yanxin [1 ]
Liu, Zongshen [1 ]
Xu, Qiyong [1 ]
Lu, Zhiyi [1 ]
Kryuchyn, Andriy [2 ]
Gorbov, Ivan [2 ]
机构：
[1] Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Peoples R China
[2] NAS Ukraine, Inst Informat Recording, Shpak Str 2, UA-03113 Kiev, Ukraine
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 05期
基金：
中国国家自然科学基金;
关键词：
CONTRAST REDUCTION; MOVING DIFFUSER; DISPERSION; DISPLAYS;
D O I：
10.1364/OE.389367
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method of speckle suppression without any active device is expected for pico-projectors. The effectiveness of the passive method of speckle reduction using a single multimode fiber and a multimode fiber bundle was actually measured and theoretically analyzed. The dependences of the speckle contrast and speckle suppression coefficient on the parameters of multimode fiber and projection systems were investigated. Our results shown that the efficiency of speckle suppression was limited because only the radial direction of the objective lens aperture was used. An improvement using both of the radial and azimuthal directions of the objective lens aperture is required. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：6820 / 6834
页数：15
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