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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 4 — Feb. 15, 2014
  • pp: 892–895

Geometric definition of the V-parameter in photonic crystal fibers

Xian-Feng Bao, Xiao-Jun Wang, Hua Su, and Xiao-Jian Shu  »View Author Affiliations

Optics Letters, Vol. 39, Issue 4, pp. 892-895 (2014)

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We propose a general geometric definition of the V-parameter in photonic crystal fibers (PCF). We argue that the fundamental modal field in both square-lattice and triangular-lattice PCFs can be approached by certain proper assemblies of the fundamental mode in a one-dimensional planar waveguide. This observation suggests a geometric definition of the effective core radius and the single-mode regime of Vπ/2 in various PCFs. The numerical results imply that the suggestion is valid for all of the one-rod, seven-rod, 19-rod, and 37-rod core triangular-lattice PCFs and the one-rod, nine-rod, and 25-rod core square-lattice PCFs.

© 2014 Optical Society of America

OCIS Codes
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(230.7390) Optical devices : Waveguides, planar
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 20, 2013
Revised Manuscript: January 3, 2014
Manuscript Accepted: January 3, 2014
Published: February 10, 2014

Xian-Feng Bao, Xiao-Jun Wang, Hua Su, and Xiao-Jian Shu, "Geometric definition of the V-parameter in photonic crystal fibers," Opt. Lett. 39, 892-895 (2014)

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