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基于slot结构的反馈耦合波导微环谐振器

Feedback-Coupled Waveguide Microring Resonator Based on Slot Structure

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摘要

为了优化微环谐振器的性能,提出了一种slot结构的反馈耦合波导微环谐振器。该结构通过在上下载型微环的基础上引入一个附加光场及采用slot波导来改善谐振器的性能参数。利用传输矩阵法分析了该改进型结构对相位、自由光谱范围及输出性能的影响,并用三维有限差分软件FDTD进行了模拟仿真。结果表明:基于微环谐振器的改进型结构的自由光谱范围由14.5 nm增大到了29 nm,消光比的绝对值从21 dB增大到了32 dB,有助于实现对应传感器件测量范围及灵敏度的提升。

Abstract

In this study, a slot-structured feedback-coupled waveguide microring resonator is proposed to optimize the performance of a microring resonator. Further, the performance parameters of the resonator are considerably improved by the introduction of an additional light field based on the add/drop-type microring and the usage of a slot waveguide. The effect of the improved structure on the phase, free spectral range, and output performance is analyzed using the transfer matrix method, and simulation analysis is performed using the three-dimensional finite difference method software named FDTD. The results denote that the free spectral range of the improved structure increases from 14.5 to 29 nm and that the absolute value of the extinction ratio increases from 21 to 31 dB, which is helpful to improve the measuring range and sensitivity of the corresponding sensor.

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中图分类号:TN256

DOI:10.3788/AOS201939.1213001

所属栏目:集成光学

基金项目:国家自然科学基金、甘肃省自然科学基金;

收稿日期:2019-07-04

修改稿日期:2019-09-12

网络出版日期:2019-12-01

作者单位    点击查看

穆洲:兰州交通大学电子与信息工程学院, 甘肃 兰州 730070
刘春娟:兰州交通大学电子与信息工程学院, 甘肃 兰州 730070
吴小所:兰州交通大学电子与信息工程学院, 甘肃 兰州 730070兰州交通大学光电技术与智能控制教育部重点实验室, 甘肃 兰州 730070
郑丽君:兰州交通大学电子与信息工程学院, 甘肃 兰州 730070

联系人作者:刘春娟(liuchj@mail.lzjtu.cn)

备注:国家自然科学基金、甘肃省自然科学基金;

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引用该论文

Mu Zhou,Liu Chunjuan,Wu Xiaosuo,Zheng Lijun. Feedback-Coupled Waveguide Microring Resonator Based on Slot Structure[J]. Acta Optica Sinica, 2019, 39(12): 1213001

穆洲,刘春娟,吴小所,郑丽君. 基于slot结构的反馈耦合波导微环谐振器[J]. 光学学报, 2019, 39(12): 1213001

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