弯曲多孔纤维中的辐射损耗

Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003. Pub Date : 2003-06-29 DOI:10.1109/ICTON.2003.1264620

I. Goncharenko, S. Helfert, R. Pregla

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引用次数: 3

摘要

分析了不同导向机制下弯曲孔洞光纤模场分布的畸变和辐射损耗。分析表明，带隙引导的多孔光纤的场强烈地集中在光纤内部，这种多孔光纤几乎不受弯曲损失的影响。在有效折射率差引导下，孔洞纤维的光场扩展到纤维末端。因此，它们在弯曲处暴露了大量的辐射损失。在这种情况下，这些损失很大程度上取决于空穴纤维晶格周期的数量、空穴直径和空穴间距。

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Radiation loss in curved holey fibres

We analyse the distortion of the mode field distribution and radiation losses arising in curved holey fibres with different guidance mechanisms. The analysis shows that the fields of holey fibres with band gap guidance are strongly concentrated inside of the fibre and such holey fibres almost are not exposed by the bend loss. The fields of the holey fibres with effective index difference guiding spread wider until the fibre ends. Therefore, they expose substantial radiation loss on their bend. At that, these losses strongly depend on the number of holey fibre lattice periods, air hole diameter and hole separation.

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Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.

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