Modal characteristics of few-mode silica-based photonic crystal fibres

被引:16
作者
Ghosh, R [1 ]
Kumar, A
Meunier, JP
Marin, E
机构
[1] Univ St Etienne, Fac Sci & Tech, UMR CNRS 5516, Lab Traitment Signal & Instrumentat, F-42023 St Etienne 2, France
[2] Indian Inst Technol, Dept Phys, New Delhi 110016, India
关键词
dispersion; optical fibres; optical waveguides; photonic crystal fibres;
D O I
10.1023/A:1007091217711
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 he very useful in designing PCF's for various applications.
引用
收藏
页码:963 / 970
页数:8
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