Silicon-Based MZI-Embedded Microring Array With Hitless and FSR-Alignment-Free Wavelength Selection

被引：3

作者：

Chen, Bei ^{[1
,2
]}

Zhang, Zhaoyang ^{[1
,2
]}

Ye, Li'ao ^{[1
,2
]}

Dai, Tingge ^{[3
]}

Yu, Hui ^{[1
,2
]}

Wang, Yuehai ^{[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] Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2022年 / 34卷 / 08期

关键词：

Silicon photonics; optical switches; mircroring resonator; BYPASS SWITCH; FILTER;

D O I：

10.1109/LPT.2022.3164405

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 a silicon-based Mach-Zehnder interferometer (MZI)-embedded microring array consisting of four wavelength channels. The embedded MZI in each microring resonator (MRR) works as an ON/OFF key of the resonance, and can offer larger operating wavelength range. The footprint of the core elements is only 180.6 mu m x 476.1 mu m. The transmission performances of four wavelength channels keep with good consistency within a 35.2-nm-wide wavelength range. The insertion loss of each channel is less than 3.05 dB. Its rising response time of the ON/OFF status transition is about 4.8 mu s. Moreover, since the array does not require the free spectral range (FSR)-alignment and the on-chip thermal crosstalk is slight, the hitless wavelength selection can be realized simply without any electronic control assistance. Our experiment results indicate that such compact, and scalable array with the function of easily-implemented hitless wavelength selection may provide another solution for large-scale wavelength division multiplexing (WDM) network.

引用

页码：436 / 439

页数：4