A rigorous analysis of the power distribution in plastic clad annular core optical fibers

Pankaj Kumar Choudhury, Toshihiko Yoshino

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Using Maxwell's field equations, an analytical investigation is presented of the relative power distributions in the different sections of a step-index plastic clad annular core optical fiber (ACF) operating in the infrared region of the electromagnetic (EM) spectrum. It is assumed that the fiber cross-section is made of two concentric circles, and the EM waves propagate through the annular region. The chosen fiber materials are widely used in low cost optical links. The wave equations are solved in the different sections of the fiber, and the general expressions for power in the core and the cladding regions are finally deduced. Plots are shown of the variation of fractional power (or the power confinement factor) in all the fiber sections against the propagation constants of sustained modes, the cases of three lowest azimuthal model indices (i.e. meridional as well as skew modes) are described. It is observed that the confinement of power in the core section is increased for ACFs of larger cross-sectional dimensions. Also, a fairly uniform distribution of power over the sustained modes remains for large size fibers, and this uniformity is greatly affected in ACFs of smaller dimensions. It is suggested that, because of strong evanescent fields, ACFs can be of potential use in chemical sensing. Apart from this, it is also presumed that these may be useful in the areas of communications. The improved mechanical strength adds the potentiality of ACFs.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalOptik (Jena)
Volume113
Issue number11
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Optical fibers
plastics
optical fibers
Plastics
fibers
Fibers
Evanescent fields
electromagnetic spectra
Optical links
Maxwell equations
Wave equations
Electromagnetic waves
wave equations
Strength of materials
electromagnetic radiation
plots
communication
Infrared radiation
propagation
Communication

Keywords

  • EM wave propagation
  • Optical fibers
  • Optical waveguides

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

A rigorous analysis of the power distribution in plastic clad annular core optical fibers. / Choudhury, Pankaj Kumar; Yoshino, Toshihiko.

In: Optik (Jena), Vol. 113, No. 11, 2002, p. 481-488.

Research output: Contribution to journalArticle

@article{c18b48943ba746f795f0f2aae7984147,
title = "A rigorous analysis of the power distribution in plastic clad annular core optical fibers",
abstract = "Using Maxwell's field equations, an analytical investigation is presented of the relative power distributions in the different sections of a step-index plastic clad annular core optical fiber (ACF) operating in the infrared region of the electromagnetic (EM) spectrum. It is assumed that the fiber cross-section is made of two concentric circles, and the EM waves propagate through the annular region. The chosen fiber materials are widely used in low cost optical links. The wave equations are solved in the different sections of the fiber, and the general expressions for power in the core and the cladding regions are finally deduced. Plots are shown of the variation of fractional power (or the power confinement factor) in all the fiber sections against the propagation constants of sustained modes, the cases of three lowest azimuthal model indices (i.e. meridional as well as skew modes) are described. It is observed that the confinement of power in the core section is increased for ACFs of larger cross-sectional dimensions. Also, a fairly uniform distribution of power over the sustained modes remains for large size fibers, and this uniformity is greatly affected in ACFs of smaller dimensions. It is suggested that, because of strong evanescent fields, ACFs can be of potential use in chemical sensing. Apart from this, it is also presumed that these may be useful in the areas of communications. The improved mechanical strength adds the potentiality of ACFs.",
keywords = "EM wave propagation, Optical fibers, Optical waveguides",
author = "Choudhury, {Pankaj Kumar} and Toshihiko Yoshino",
year = "2002",
language = "English",
volume = "113",
pages = "481--488",
journal = "Optik",
issn = "0030-4026",
publisher = "Urban und Fischer Verlag Jena",
number = "11",

}

TY - JOUR

T1 - A rigorous analysis of the power distribution in plastic clad annular core optical fibers

AU - Choudhury, Pankaj Kumar

AU - Yoshino, Toshihiko

PY - 2002

Y1 - 2002

N2 - Using Maxwell's field equations, an analytical investigation is presented of the relative power distributions in the different sections of a step-index plastic clad annular core optical fiber (ACF) operating in the infrared region of the electromagnetic (EM) spectrum. It is assumed that the fiber cross-section is made of two concentric circles, and the EM waves propagate through the annular region. The chosen fiber materials are widely used in low cost optical links. The wave equations are solved in the different sections of the fiber, and the general expressions for power in the core and the cladding regions are finally deduced. Plots are shown of the variation of fractional power (or the power confinement factor) in all the fiber sections against the propagation constants of sustained modes, the cases of three lowest azimuthal model indices (i.e. meridional as well as skew modes) are described. It is observed that the confinement of power in the core section is increased for ACFs of larger cross-sectional dimensions. Also, a fairly uniform distribution of power over the sustained modes remains for large size fibers, and this uniformity is greatly affected in ACFs of smaller dimensions. It is suggested that, because of strong evanescent fields, ACFs can be of potential use in chemical sensing. Apart from this, it is also presumed that these may be useful in the areas of communications. The improved mechanical strength adds the potentiality of ACFs.

AB - Using Maxwell's field equations, an analytical investigation is presented of the relative power distributions in the different sections of a step-index plastic clad annular core optical fiber (ACF) operating in the infrared region of the electromagnetic (EM) spectrum. It is assumed that the fiber cross-section is made of two concentric circles, and the EM waves propagate through the annular region. The chosen fiber materials are widely used in low cost optical links. The wave equations are solved in the different sections of the fiber, and the general expressions for power in the core and the cladding regions are finally deduced. Plots are shown of the variation of fractional power (or the power confinement factor) in all the fiber sections against the propagation constants of sustained modes, the cases of three lowest azimuthal model indices (i.e. meridional as well as skew modes) are described. It is observed that the confinement of power in the core section is increased for ACFs of larger cross-sectional dimensions. Also, a fairly uniform distribution of power over the sustained modes remains for large size fibers, and this uniformity is greatly affected in ACFs of smaller dimensions. It is suggested that, because of strong evanescent fields, ACFs can be of potential use in chemical sensing. Apart from this, it is also presumed that these may be useful in the areas of communications. The improved mechanical strength adds the potentiality of ACFs.

KW - EM wave propagation

KW - Optical fibers

KW - Optical waveguides

UR - http://www.scopus.com/inward/record.url?scp=0036991698&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036991698&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036991698

VL - 113

SP - 481

EP - 488

JO - Optik

JF - Optik

SN - 0030-4026

IS - 11

ER -