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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 1 — Jan. 1, 2012
  • pp: 84–88

Mode conversion in rectangular-core optical fibers

Amber L. Bullington, Paul H. Pax, Arun K. Sridharan, John E. Heebner, Michael J. Messerly, and Jay W. Dawson  »View Author Affiliations

Applied Optics, Vol. 51, Issue 1, pp. 84-88 (2012)

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Mode conversion from the fundamental to a higher-order mode in a rectangular-core optical fiber is accomplished by applying pressure with the edge of a flat plate. Modal analysis of the near and far field images of the fiber’s transmitted beam determines the purity of the converted mode. Mode conversion reaching 75% of the targeted higher-order mode is achieved using this technique. Conversion from a higher-order mode back to the fundamental mode is also demonstrated with comparable efficiency. Propagation of a higher-order mode in a rectangular-core fiber allows for better thermal management and bend-loss immunity than conventional circular-core fibers, extending the power-handling capabilities of optical fibers.

© 2012 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2400) Fiber optics and optical communications : Fiber properties
(140.3510) Lasers and laser optics : Lasers, fiber
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 19, 2011
Revised Manuscript: October 31, 2011
Manuscript Accepted: November 7, 2011
Published: December 22, 2011

Amber L. Bullington, Paul H. Pax, Arun K. Sridharan, John E. Heebner, Michael J. Messerly, and Jay W. Dawson, "Mode conversion in rectangular-core optical fibers," Appl. Opt. 51, 84-88 (2012)

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