Extended field-of-view in a lensless endoscope using an aperiodic multicore fiber
Optics
2016-07-25 v1
Abstract
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 MCF experimental feasibility. We demonstrate experimentally pixelation-free lensless endoscopy imaging over a 120 micron 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.
Keywords
Cite
@article{arxiv.1606.08169,
title = {Extended field-of-view in a lensless endoscope using an aperiodic multicore fiber},
author = {Siddharth Sivankutty and Viktor Tsvirkun and Géraud Bouwmans and Dani Kogan and Dan Oron and Esben Ravn Andresen and Hervé Rigneault},
journal= {arXiv preprint arXiv:1606.08169},
year = {2016}
}
Comments
Submitted to Optics Letters