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首页> 外文期刊>Applied optics >Coupling-loss reduction of a vertically coupled microring resonator filter by spot-size-matched busline waveguides
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Coupling-loss reduction of a vertically coupled microring resonator filter by spot-size-matched busline waveguides

机译：光斑尺寸匹配的总线波导降低垂直耦合微环谐振器滤波器的耦合损耗

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摘要

To improve the input-output coupling loss of a vertically coupled microring resonator filter, we fabricated microring resonators on an antiresonant reflecting optical waveguide (ARROW) with a large spot size and on the rectangular busline waveguide with a spot-size transformer. The spot size and the tapered structure were optimally designed from the viewpoint of spot-size matching to single-mode fibers and the reduction of radiation loss. Clear dropping responses were demonstrated for the ARROW-based microring resonator filters, and the coupling loss was successfully reduced by 22 dB.
机译：为了改善垂直耦合微环谐振器滤波器的输入输出耦合损耗，我们在具有大光点尺寸的反共振反射光波导（ARROW）上和在具有点尺寸变压器的矩形总线波导上制作了微环谐振器。从与单模光纤的光斑尺寸匹配和减少辐射损失的角度出发，光斑尺寸和锥形结构得到了最佳设计。演示了基于箭头的微环谐振器滤波器的明显下降响应，并且耦合损耗成功降低了22 dB。

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