23 September 2015 Untangled modes in multimode fibres for flexible microendoscopy
Author Affiliations +
Abstract
Small, fibre-based endoscopes have already improved our ability to image deep within the human body. A novel approach introduced recently utilised disordered light within a standard multimode optical fibre for lensless imaging. Importantly, this approach brought very significant reduction of the instruments footprint to dimensions below 100 μm. The most important limitations of this exciting technology is the lack of bending flexibility - imaging is only possible as long as the fibre remains stationary. The only route to allow flexibility of such endoscopes is in trading-in all the knowledge about the optical system we have, particularly the cylindrical symmetry. In perfect cylindrical waveguides we can find optical modes that do not change their spatial distribution as they propagate through. We show that typical fibers retain such highly ordered propagation of light over remarkably large distances, which allows correction operators to be introduced in imaging geometries in order to maintain high-quality performance even in such flexible micro-endoscopes.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin Plöschner, Martin Plöschner, Tomáš Tyc, Tomáš Tyc, Tomáš Čižmár, Tomáš Čižmár, } "Untangled modes in multimode fibres for flexible microendoscopy", Proc. SPIE 9630, Optical Systems Design 2015: Computational Optics, 96300E (23 September 2015); doi: 10.1117/12.2191418; https://doi.org/10.1117/12.2191418
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT


Back to Top