Analysis of gratings with symmetrical and unsymmetrical periods

机译：对称和非对称周期的光栅分析

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The paper shows how gratings can be analyzed in an efficient way. In the case of symmetrical periods, the Floquet modes can be obtained from the input impedance by open circuiting the output and the input admittance by short circuiting the output of the period and even from half of the period. In case of unsymmetrical periods, the E- and H-fields together form the Floquet modes. Because the Floquet mode system is a complete system, we can analyze, e.g., finite periodic fibre sections with homogeneous fibers at the input and output.

机译：本文展示了如何以有效的方式分析光栅。在对称周期的情况下，可以通过使输出开路并使输入导纳通过使该周期的输出短路甚至从该周期的一半短路来从输入阻抗获得浮球模式。在非对称周期的情况下，电场和磁场共同形成浮球模式。由于Floquet模式系统是一个完整的系统，因此我们可以分析例如在输入和输出处具有均质纤维的有限周期纤维截面。

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来源
《Transparent Optical Networks, 2004. Proceedings of 2004 6th International Conference on》|2004年|p.101-104|共4页
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Pregla; R.;
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中图分类无线电电子学、电信技术;
关键词
Bragg gratings; periodic structures; optical communication equipment; light polarisation; grating analysis; symmetrical periods; unsymmetrical periods; Floquet modes; input impedance; E-field; H-field; finite periodic fibre sections; homogeneous fibers; fiber gratings; filters; delay equalizers; polarisation converter; fibre Bragg gratings;

机译：布拉格光栅;周期结构;光通信设备;偏振;光栅分析;对称周期;非对称周期;浮球模式;输入阻抗;电场;磁场;有限周期光纤截面;均匀光纤;光纤光栅;滤波器;延迟均衡器;偏振转换器;光纤布拉格光栅;

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Analysis of gratings with symmetrical and unsymmetrical periods

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