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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 6 — Jun. 1, 2006
  • pp: 1020–1028

Hybrid modes in a Bragg fiber: dispersion relation and electromagnetic fields

J. Sakai and Jympei Sasaki  »View Author Affiliations

JOSA B, Vol. 23, Issue 6, pp. 1020-1028 (2006)

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We present numerical results on dispersion relation and electromagnetic fields in a Bragg fiber. Discussions are focused on the hybrid modes. Dispersion relations for TE, TM, and hybrid modes are investigated in four different ways. It is shown that the HE 11 mode is the lowest-order mode and the TM 01 mode is the first higher-order mode. A photonic bandgap is observed in the dispersion relation if the parameters are appropriately changed. We study the influence of a deviation from the quarter-wave stack condition on the dispersion curve and electromagnetic fields. The deviation has little influence on dispersion characteristics. Electromagnetic fields of hybrid modes vanish in the cladding interfaces under the quarter-wave stack condition. Characteristics of the Bragg fiber are related with those in the circular metallic waveguide.

© 2006 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2400) Fiber optics and optical communications : Fiber properties

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 29, 2005
Revised Manuscript: December 13, 2005
Manuscript Accepted: December 27, 2005

Jun-ichi Sakai and Jympei Sasaki, "Hybrid modes in a Bragg fiber: dispersion relation and electromagnetic fields," J. Opt. Soc. Am. B 23, 1020-1028 (2006)

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