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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 1921–1924

Toward a miniature endomicroscope: pixelation-free and diffraction-limited imaging through a fiber bundle

Donggyu Kim, Jungho Moon, Moonseok Kim, Taeseok Daniel Yang, Jaisoon Kim, Euiheon Chung, and Wonshik Choi  »View Author Affiliations


Optics Letters, Vol. 39, Issue 7, pp. 1921-1924 (2014)
http://dx.doi.org/10.1364/OL.39.001921


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Abstract

A fiber bundle is widely used for endoscopic imaging due to its direct image delivery capability. However, there exists an inevitable pixelation artifact, which limits spatial resolution to the diameter of individual fibers. In this Letter, we present a method that can eliminate this artifact and achieve diffraction-limited spatial resolution. We exploited the binary control of a digital micromirror device to measure a transmission matrix of a fiber bundle and to subsequently control mode mixing among individual fibers. In doing so, we achieved a 22 kHz scanning rate of a diffraction-limited focused spot and obtained fluorescence endoscope imaging (58μm×58μm) with near video-rate (10.3 Hz) acquisition. Our study lays a foundation for developing an ultrathin and high-resolution microendoscope.

© 2014 Optical Society of America

OCIS Codes
(110.2350) Imaging systems : Fiber optics imaging
(110.0113) Imaging systems : Imaging through turbid media
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Imaging Systems

History
Original Manuscript: December 9, 2013
Revised Manuscript: February 7, 2014
Manuscript Accepted: February 9, 2014
Published: March 24, 2014

Virtual Issues
Vol. 9, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Donggyu Kim, Jungho Moon, Moonseok Kim, Taeseok Daniel Yang, Jaisoon Kim, Euiheon Chung, and Wonshik Choi, "Toward a miniature endomicroscope: pixelation-free and diffraction-limited imaging through a fiber bundle," Opt. Lett. 39, 1921-1924 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-7-1921


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