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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 13 — Jul. 1, 2013
  • pp: 2253–2255

Disorder-mediated enhancement of fiber numerical aperture

Youngwoon Choi, Changhyeong Yoon, Moonseok Kim, Juhee Yang, and Wonshik Choi  »View Author Affiliations


Optics Letters, Vol. 38, Issue 13, pp. 2253-2255 (2013)
http://dx.doi.org/10.1364/OL.38.002253


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Abstract

The numerical aperture (NA) of a multimode optical fiber sets the limit of the information transport capacity along the spatial degree of freedom. In this Letter, we report that the application of a highly disordered medium can overcome the capacity limit set by the fiber NA. Specifically, we coated the input surface of a multimode fiber with a disordered medium made of ZnO nanoparticles and transported a wide-field image through the fiber with a spatial resolution beyond the diffraction limit given by the fiber NA. This was made possible because multiple scatterings induced by the disordered medium physically increased the NA of the entire system. Our study will lead to enhancing the spatial resolution of fiber-based endoscopic imaging and also improving the information transport capacity in optical communications.

© 2013 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:
Fiber Optics and Optical Communications

History
Original Manuscript: April 25, 2013
Revised Manuscript: May 22, 2013
Manuscript Accepted: May 27, 2013
Published: June 24, 2013

Citation
Youngwoon Choi, Changhyeong Yoon, Moonseok Kim, Juhee Yang, and Wonshik Choi, "Disorder-mediated enhancement of fiber numerical aperture," Opt. Lett. 38, 2253-2255 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-13-2253

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