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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 15, Iss. 17 — Sep. 1, 1990
  • pp: 977–979

Real-time restoration method for image transmission in a multimode optical fiber

Masaki Fukui and Ken-ichi Kitayama  »View Author Affiliations


Optics Letters, Vol. 15, Issue 17, pp. 977-979 (1990)
http://dx.doi.org/10.1364/OL.15.000977


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Abstract

A new restoration method for a distorted image transmitted through a single step-index multimode fiber is presented. The transmission of the reference beam along with the image enables one to compensate on a real-time basis for the distortion caused by the fiber modal phase dispersion. At the receiver end the interference between the Fourier-transformed image and the reference beam creates gratings in a photorefractive crystal. It is theoretically shown that, owing to the spatial segregation characteristic of the Fourier-transformed mode distribution of the step-index fiber, the phase conjugation of the transmitted image through four-wave mixing obtained from the crystal reconstructs the original image.

© 1990 Optical Society of America

History
Original Manuscript: September 25, 1989
Manuscript Accepted: June 18, 1990
Published: September 1, 1990

Citation
Masaki Fukui and Ken-ichi Kitayama, "Real-time restoration method for image transmission in a multimode optical fiber," Opt. Lett. 15, 977-979 (1990)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-15-17-977

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