Hitless Wavelength-Selective Switch Using a Single Microring Resonator Assisted With a Symmetric MZI

被引：5
作者：
Chen, Bei [1 ,2 ]
Qi, Yake [3 ]
Dai, Tingge [4 ]
Guo, Xiaoqing [1 ,2 ]
Wang, Yuehai [1 ,2 ]
Zhang, Quan [5 ]
Yu, Hui [1 ,2 ]
Yang, Jianyi [1 ,2 ]
机构：
[1] Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Interdisciplinary Ctr Quantum Informat, Hangzhou 310027, Peoples R China
[3] China Mobile Commun Grp Zhejiang Co Ltd, Hangzhou 310006, Peoples R China
[4] Zhejiang Univ, Ningbo Inst Technol, Ningbo 315100, Peoples R China
[5] Harvard Univ, Harvard Med Sch, Charlestown, MA 02129 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 07期
关键词：
Optical waveguides; Optical switches; Optical resonators; Couplings; Heating systems; Tuning; integrated optics; microresonators; BYPASS SWITCH; SILICON; RING; FILTER;
D O I：
10.1109/LPT.2020.2977358
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate an optical hitless wavelength-selective switch using a single microring resonator assisted with a symmetric Mach-Zehnder interferometer (MZI). A part of the ring waveguide and its symmetrical waveguide are designed to be an equally armed MZI as an on-off switch for the resonant state of the microring. The symmetric MZI is insensitive to the spectrum and it avoids free spectral range (FSR) matching or alignment in use. The FSR of the structure is 2.18 nm and the insertion loss (IL) at the drop-port is 1.8 dB. Our experimental results reveal that the fabricated device permits on-chip hitless rerouting of multi-wavelength signals, which means the intermediate wavelength remains unaffected during wavelength switching.
引用
收藏
页码：402 / 405
页数：4
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