D 2015

Untangled modes in multimode fibres for flexible microendoscopy

PLÖSCHNER, Martin, Tomáš TYC and Tomáš ČIŽMÁR

Basic information

Original name

Untangled modes in multimode fibres for flexible microendoscopy

Authors

PLÖSCHNER, Martin (203 Czech Republic), Tomáš TYC (203 Czech Republic, belonging to the institution) and Tomáš ČIŽMÁR (203 Czech Republic, guarantor)

Edition

BELLINGHAM, OPTICAL SYSTEMS DESIGN 2015: COMPUTATIONAL OPTICS, p. "SPIE"-"7", 8 pp. 2015

Publisher

SPIE-INT SOC OPTICAL ENGINEERING

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10306 Optics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

electronic version available online

References:

RIV identification code

RIV/00216224:14310/15:00116095

Organization unit

Faculty of Science

ISBN

978-1-62841-819-4

ISSN

UT WoS

000366825700010

Keywords in English

Fibre optics; Endoscopy; Digital holography; Optical modes

Tags

Tags

International impact, Reviewed
Změněno: 30/7/2020 11:05, Mgr. Marie Šípková, DiS.

Abstract

V originále

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 pm. 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.