Flexible lensless endoscope with a conformationally invariant multi-core fiber
Abstract
The lensless endoscope represents the ultimate limit in miniaturization of imaging tools: an image can be transmitted through a (multi-mode or multi-core) fiber by numerical or physical inversion of the fiber's pre-measured transmission matrix. However, the transmission matrix changes completely with only minute conformational changes of the fiber, which has so far limited lensless endoscopes to fibers that must be kept static. In this letter we report for the first time a lensless endoscope which is exempt from the requirement of static fiber by designing and employing a custom-designed conformationally invariant fiber. We give experimental and theoretical validations and determine the parameter space over which the invariance is maintained.
Keywords
Cite
@article{arxiv.1905.09643,
title = {Flexible lensless endoscope with a conformationally invariant multi-core fiber},
author = {Viktor Tsvirkun and Siddharth Sivankutty and Karen Baudelle and Rémi Habert and Géraud Bouwmans and Olivier Vanvincq and Esben Ravn Andresen and Hervé Rigneault},
journal= {arXiv preprint arXiv:1905.09643},
year = {2019}
}