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Circularly birefringent optical fibres: new proposals

Part I. Field analysis

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Abstract

A new family of azimuthally inhomogeneous fibres is proposed and analysed theoretically. In contrast with previous similar structures, in these fibres one can find exact analytical expressions for the guided fields. Such modes could also be used as zeroorder approximations in analysisng other waveguides.

This paper presents the basic theory and several examples illustrating how the main parameters (radii, number and width of the sectors, and refractive indices) affect the field profiles. We also present introductory, qualitative arguments on how this improved control over the field could be exploited in order to get either high circular birefringence or good matching of the guided modes to TEM00 or LP01 exciting fields.

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Authors and Affiliations

  1. Dipartimento di Elettronica e Informatica, Università di Padova, Via Gradenigo 6/A, 35131, Padova, Italy

    Roberto Castelli, Fernanda Irrera & Carlo G. Someda

Authors
  1. Roberto Castelli
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  2. Fernanda Irrera
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  3. Carlo G. Someda
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Castelli, R., Irrera, F. & Someda, C.G. Circularly birefringent optical fibres: new proposals. Opt Quant Electron 21, 35–46 (1989). https://doi.org/10.1007/BF02199465

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  • DOI: https://doi.org/10.1007/BF02199465

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