三角形三芯非线性定向光纤耦合器中的孤子开关

M. da Silva, A. F. Teles, A. Sombra
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引用次数: 0

摘要

本文利用拉格朗日密度公式,用变分方法对三角形三芯非线性光纤耦合器中基本孤子的传输和开关进行了解析研究。直接从耦合非线性薛定谔方程中得到解析解。用解析方法得到的一阶孤子的传输特性与数值分析结果吻合较好。考虑耦合器的长度和临界功率,对该几何形状与平面几何形状进行了比较研究。与平面几何结构相比,三角形几何结构具有较短的器件长度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Soliton switching in triangular three-core nonlinear directional fiber coupler
We present an analytical investigation of the propagation and the switching of fundamental solitons in a triangular three-core nonlinear fiber coupler with a variational method using the Lagrangian density formulation. The analytical solutions were directly obtained from the coupled nonlinear Schrodinger equations. The transmission characteristics of first-order solitons obtained by the analytical procedure agree well with the results from numerical analysis. Taking into account the length of the coupler and the critical power a comparative study between this geometry and planar geometries were done. The triangular geometry has a shorter device length compared with planar geometries.
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