Evanescent-Mode Coupling In A Bicore Fibre: Experiments And Applications

P. J. Severin; W. Bardoel

doi:10.1117/12.947538

21 September 1988 Evanescent-Mode Coupling In A Bicore Fibre: Experiments And Applications

P. J. Severin, W. Bardoel

Proceedings Volume 0949, Fibre Optics '88; (1988) https://doi.org/10.1117/12.947538
Event: Sira/Fibre Optics '88, 1988, London, United Kingdom

Abstract

A BiCore fibre (BCF) has been drawn and tested experimentally as a model for studying evanescent mode coupling to be used for single-mode passive fibre components made in the Fused-Head-End technique and in planar optics. The coupling coefficient K is shown to be linearly related to wavelength A. Polarization effects are manifested in the constant term only. Given the variation in core shapes good agreement with existing theory is found. A 167 mm long BCF forms a fibre polarization-splitter. For a BCF filter the figure of merit is the bandwidth length product, typically about 1.2 nm.m FWHM. Bending a BCF over a certain length and radius satisfies well straightforward theory so that the device can be fine-tuned in a controlled way. Some practical applications are indicated.

Citation Download Citation

P. J. Severin and W. Bardoel "Evanescent-Mode Coupling In A Bicore Fibre: Experiments And Applications", Proc. SPIE 0949, Fibre Optics '88, (21 September 1988); https://doi.org/10.1117/12.947538

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