Guided propagation in a step-index, multi-mode fiber: Effect of index difference variation on allowable TM propagation constants

Todd R. Downey, Fabrice Meriaudeau, Ali Passian, Andrew Wig, Thomas L. Ferrell

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The effect of variation of core and cladding index difference, Δn = ncore-ncladding, on allowable values for the guided mode transverse magnetic propagation constants within a step-index, multi-mode optical fiber is investigated. We use a iterative computational technique to calculate the propagation constants for modes inside and outside the core that satisfy the boundary conditions contained within the characteristic eigen-equation for the TM field components. Evidence of a strong dependence of the allowable propagation constants on changes of Δn is shown.

Original languageEnglish
Pages (from-to)273-277
Number of pages5
JournalOptics and Laser Technology
Volume31
Issue number4
DOIs
StatePublished - Jun 1999
Externally publishedYes

Funding

Oak Ridge National Laboratory is managed by Lockheed Martin Energy Research Corp. for the US Department of Energy under contract number DE-AC05-96OR22464.

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