Parabolic cylindrical waveguides: Revisited

Pankaj Kumar Choudhury, Roger A. Lessard

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

An analytical investigation is presented of a waveguide with parabolic cylindrical guiding section. It is assumed that the waveguide has a step-index profile, and the refractive index of the guiding region is slightly higher than that of the two non-guiding regions so that the scalar field approximation in optical waveguides can be employed for the analysis. The eigenvalue equation for the cutoff modes is derived, and it is solved without using any field approximations. The plots represent a bunching tendency of modes instead of well-defined discreteness, which is because the distance of separation between the two layer interfaces does not remain constant, but continues to increase instead as one moves away from the region near the vertices of the parabolas. It is also found that by making the analysis more exact, the guide supports less number of modes, which is of advantage in the point of view of applications of such guides in optical communications or other related fields.

Original languageEnglish
Pages (from-to)358-362
Number of pages5
JournalOptik (Jena)
Volume112
Issue number8
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Circular waveguides
Waveguides
waveguides
Optical waveguides
Optical communication
Refractive index
parabolas
bunching
approximation
optical waveguides
optical communication
apexes
tendencies
eigenvalues
cut-off
plots
refractivity
scalars
profiles

Keywords

  • Electromagnetic wave propagation
  • Optical fibers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Choudhury, P. K., & Lessard, R. A. (2001). Parabolic cylindrical waveguides: Revisited. Optik (Jena), 112(8), 358-362.

Parabolic cylindrical waveguides : Revisited. / Choudhury, Pankaj Kumar; Lessard, Roger A.

In: Optik (Jena), Vol. 112, No. 8, 2001, p. 358-362.

Research output: Contribution to journalArticle

Choudhury, PK & Lessard, RA 2001, 'Parabolic cylindrical waveguides: Revisited', Optik (Jena), vol. 112, no. 8, pp. 358-362.
Choudhury, Pankaj Kumar ; Lessard, Roger A. / Parabolic cylindrical waveguides : Revisited. In: Optik (Jena). 2001 ; Vol. 112, No. 8. pp. 358-362.
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