Abstract
The modal characteristics of silica-based photonic crystal fibres (PCF) are examined through a scalar modal analysis combined with an effective V-parameter model using a finite-difference method. Cut off frequencies of the lowest-order modes and the normalised dispersion curves are given and are found to be quasi-independent of the hole-size-to-pitch ratio. A simple and accurate empirical relation for the cutoff wavelength is given for the first higher-order mode for fibres with hole-size-to-pitch ratio below 0.7. These results should be very useful in designing PCF's for various applications.
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Ghosh, R., Kumar, A., Meunier, JP. et al. Modal characteristics of few-mode silica-based photonic crystal fibres. Optical and Quantum Electronics 32, 963–970 (2000). https://doi.org/10.1023/A:1007091217711
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DOI: https://doi.org/10.1023/A:1007091217711