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Optics Letters

Optics Letters


  • Vol. 25, Iss. 18 — Sep. 15, 2000
  • pp: 1328–1330

Donor and acceptor guided modes in photonic crystal fibers

A. Ferrando, E. Silvestre, J. J. Miret, P. AndrÃs, and M. V. AndrÃs  »View Author Affiliations

Optics Letters, Vol. 25, Issue 18, pp. 1328-1330 (2000)

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We present a triangular photonic-crystal-fiber structure that exhibits guided modes simultaneously above and below the first conduction band. We achieve this configuration by decreasing the size of one of the airholes (the defect) in a specific triangular lattice. More generally, we analyze the behavior of guided modes that depends on the size of the defect. Defects generated by decreasing or increasing the size of one of the holes produce donor or acceptor guided modes, respectively, in analogy with impurity levels in solid-state crystals. We conclude that the guiding mechanism for both donor and acceptor modes is produced by a unique phenomenon of multiple interference by a periodic structure.

© 2000 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2280) Fiber optics and optical communications : Fiber design and fabrication

A. Ferrando, E. Silvestre, J. J. Miret, P. AndrÃs, and M. V. AndrÃs, "Donor and acceptor guided modes in photonic crystal fibers," Opt. Lett. 25, 1328-1330 (2000)

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