Curvature induced mode coupling in large core optical fibres with step refractive index profiles

D. Su, A. A P Boechat, J. D C Jones

Research output: Contribution to journalArticle

Abstract

Abstract: A simple ray model is developed to approximate the output beam angle increase caused by a symmetric bend with variable curvature in a large core optical fibre beam delivery system of the type commonly used in laser material processing. The results are compared with experiments using curved fibres in the shape of half-cycle cosines with different rates of curvature change. The theoretical model was supported by experiment, and is sufficiently simple for application in the design of an optical fibre beam delivery system. © 1994 Elsevier Science Limited.

Original languageEnglish
Pages (from-to)193-205
Number of pages13
JournalOptics and Lasers in Engineering
Volume20
Issue number3
DOIs
Publication statusPublished - 1994

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