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Optics Letters

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  • Vol. 29, Iss. 4 — Feb. 15, 2004
  • pp: 349–351

Modeling of realistic cladding structures for air-core photonic bandgap fibers

Niels Asger Mortensen and Martin Dybendal Nielsen  »View Author Affiliations


Optics Letters, Vol. 29, Issue 4, pp. 349-351 (2004)
http://dx.doi.org/10.1364/OL.29.000349


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Abstract

Cladding structures of photonic bandgap fibers often have airholes of noncircular shape, and, typically, close-to-hexagonal airholes with curved corners are observed. We study photonic bandgaps in such structures by aid of a two-parameter representation of the size and curvature. For the fundamental bandgap we find that the bandgap edges (the intersections with the air line) shift toward shorter wavelengths when the air-filling fraction ƒ is increased. The bandgap also broadens, and the relative bandwidth increases exponentially with ƒ<sup>2</sup> . Compared with recent experiments [Nature <i>424,</i> 657 (2003)] we find very good agreement.

© 2004 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2280) Fiber optics and optical communications : Fiber design and fabrication

Citation
Niels Asger Mortensen and Martin Dybendal Nielsen, "Modeling of realistic cladding structures for air-core photonic bandgap fibers," Opt. Lett. 29, 349-351 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-4-349

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