非周期图
光学
波前
视野
芯(光纤)
倾斜(摄像机)
衍射
计算机科学
物理
工程类
数学
机械工程
组合数学
作者
Siddharth Sivankutty,Viktor Tsvirkun,Géraud Bouwmans,Dani Kogan,Dan Oron,Esben Ravn Andresen,Hervé Rigneault
出处
期刊:Optics Letters
[The Optical Society]
日期:2016-07-25
卷期号:41 (15): 3531-3531
被引量:35
摘要
We investigate lensless endoscopy using coherent beam combining and aperiodic multicore fibers (MCF). We show that diffracted orders, inherent to MCF with periodically arranged cores, dramatically reduce the field-of-view (FoV), and that randomness in MCF core positions can increase the FoV up to the diffraction limit set by a single fiber core, while maintaining a MCF experimental feasibility. We demonstrate experimentally pixelation-free lensless endoscopy imaging over a 120 μm FoV with an aperiodic MCF designed with widely spaced cores. We show that this system is suitable to perform beam scanning imaging by simply applying a tilt to the proximal wavefront.
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