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首页> 外文期刊>Optics Letters >Enhancing optical isolator performance in nonreciprocal waveguide arrays
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Enhancing optical isolator performance in nonreciprocal waveguide arrays

机译:增强不可逆波导阵列中的光隔离器性能

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We investigate the operation of optical isolators based on magneto-optics waveguide arrays beyond the coupled mode analysis. Semi-vectorial beam propagation simulations demonstrate that evanescent tail coupling and the effects of radiation are responsible for degrading the device's performance. Our analysis suggests that these effects can be mitigated when the array size is scaled up. In addition, we propose the use of radiation blockers in order to offset some of these effects, and we show that they provide a dramatic improvement in performance. Finally, we also study the robustness of the system with respect to fabrication tolerances using the coupled mode theory. We show that small, random variations in the system's parameters tend to average out as the number of optical guiding channels increases. (C) 2014 Optical Society of America
机译:除了耦合模式分析之外,我们还研究基于磁光波导阵列的光隔离器的操作。半矢量光束传播仿真表明,e逝的尾部耦合和辐射效应是导致设备性能下降的原因。我们的分析表明,按比例增加阵列大小可以减轻这些影响。此外,我们建议使用辐射阻挡器以抵消其中一些影响,并且我们证明它们可以显着提高性能。最后,我们还使用耦合模式理论研究了系统在制造公差方面的鲁棒性。我们表明,随着光导通道数量的增加,系统参数的随机变化趋于平均。 (C)2014年美国眼镜学会

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