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Proceedings Paper

BiCore Fibre, a multipurpose evanescent mode-coupling-based device
Author(s): Piet J. Severin
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Paper Abstract

The Evanescent Mode Coupling phenomenon between two identical fibres has been studied in devices made with three different techniques. All show the coupling constant K to be linearly related to wavelength λ. This is explained in a simple model. In one of them, the BiCore Fibre (BCF), the effects of loading, temperature, bending and twisting are discussed. The BCF is intrinsically insensitive to temperature, bending is a most useful tuning mechanism and loading leads to polarization-dependent sensor effects. Through the wavelength dependence the BCE is shown to act as a distributed sensor. The BCF can be a polarization splitter for a particular length, but twisting allows any length to be used to that effect. In combination with other fibre-optic components the BCF can be used to advantage in all-fibre optical instruments. A reflection polarimeter is shown as an example.

Paper Details

Date Published: 1 September 1990
PDF: 17 pages
Proc. SPIE 1314, Fibre Optics '90, (1 September 1990); doi: 10.1117/12.21997
Show Author Affiliations
Piet J. Severin, Philips Research Labs. (Netherlands)

Published in SPIE Proceedings Vol. 1314:
Fibre Optics '90
P. McGeehin, Editor(s)

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