Ultrahigh extinction ratio silicon micro-ring modulator by MDM resonance for high speed PAM-4 and PAM-8 signaling

被引：7

作者：

Liu, Jiacheng ^{[1
]}

Du, Jiangbing ^{[1
,2
]}

Shen, Weihong ^{[1
]}

Zhou, Gangqiang ^{[1
]}

Zhou, Linjie ^{[1
]}

Zhang, Wenjia ^{[1
,2
]}

Xu, Ke ^{[3
]}

He, Zuyuan ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[2] Peng Cheng Lab, Shenzhen 518055, Peoples R China

[3] Harbin Inst Technol Shenzhen, Dept Elect & Informat Engn, Shenzhen 518055, Peoples R China

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 14期

基金：

中国国家自然科学基金;

关键词：

TRANSMITTER;

D O I：

10.1364/OE.461594

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Due to the difficulty of controlling the waveguide loss in the doping region, high-speed silicon micro-ring modulators usually have limited extinction ratio. In this work, we present a mode-division-multiplexing (MDM) resonance-enhanced silicon micro-ring modulator with an ultrahigh extinction ratio. We used a two-mode micro-ring resonator and a mode conversion circular structure to trap the light twice within a single micro-ring resonator. Proof-of-concept high extinction ratio up to 55 dB was obtained. 30 Gb/s PAM-8 and 50 Gb/s PAM-4 signaling with a bit error rate below the hard-decision forward error correction (HD-FEC) threshold were demonstrated with the fabricated modulator, indicating great potential for high-order pulse amplitude modulation (PAM). (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：25672 / 25684

页数：13

共 40 条

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