Low eccentricity elliptical fibers with helical windings under slow-wave consideration - Some special cases

Deepak Kumar, Pankaj Kumar Choudhury, Faidz Abd Rahman

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Analytical investigation of the lightwave propagation through dielectric elliptical fibers with conducting helical windings on the core-clad boundary is presented under the consideration of slow-wave approximation. The analysis essentially requires the use of elliptical coordinate system. Mathieu and the modified Mathieu functions are used as the representatives of the electromagnetic fields within the structure. Field components in the different sections of the guide are presented, and the characteristic dispersion relations for the system are deduced for 0° and 90° pitch angles. The investigation reveals that the pitch angle has ultimately no effect on the dispersion relations for their selected values. The effect of core ellipse eccentricity on the dispersion characteristics is presented for two different operating wavelengths, and considering different values of the core major axis length.

Original languageEnglish
Pages (from-to)926-933
Number of pages8
JournalOptik
Volume121
Issue number10
DOIs
Publication statusPublished - Jun 2010
Externally publishedYes

Fingerprint

helical windings
eccentricity
pitch (inclination)
fibers
Fibers
Mathieu function
ellipses
Electromagnetic fields
electromagnetic fields
conduction
Wavelength
propagation
approximation
wavelengths

Keywords

  • EM waves
  • Helical structures
  • Optical waveguides

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Low eccentricity elliptical fibers with helical windings under slow-wave consideration - Some special cases. / Kumar, Deepak; Choudhury, Pankaj Kumar; Rahman, Faidz Abd.

In: Optik, Vol. 121, No. 10, 06.2010, p. 926-933.

Research output: Contribution to journalArticle

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