High-Speed Optical Mode Switch in Lithium Niobate on Insulator

被引：11

作者：

Jiang, Yongheng ^{[1
]}

Han, Xu ^{[1
,2
]}

Li, Yiyang ^{[1
]}

Xiao, Huifu ^{[1
]}

Huang, Haijin ^{[2
]}

Zhang, Pu ^{[1
]}

Dubey, Aditya ^{[2
]}

Yuan, Mingrui ^{[1
]}

Nguyen, Thach Giang ^{[2
]}

Boes, Andreas ^{[2
,3
,4
]}

Li, Yingtao ^{[1
]}

Ren, Guanghui ^{[2
]}

Xue, Jiuzhi ^{[5
]}

Hao, Qinfen ^{[6
]}

Su, Yikai ^{[7
]}

Mitchell, Arnan ^{[2
]}

Tian, Yonghui ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China

[2] RMIT Univ, Integrated Photon & Applicat Ctr InPAC, Sch Engn, Melbourne, Vic 3001, Australia

[3] Univ Adelaide, Inst Photon Adv Sensing, Adelaide, SA 5005, Australia

[4] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia

[5] Smart Liquid Crystal Technol Co Ltd, Changshu 215500, Peoples R China

[6] Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China

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

来源：

ACS PHOTONICS | 2023年 / 10卷 / 07期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Optical mode switch; Lithium niobate on insulator (LNOI); Silicon nitride; Mode-division-multiplexing (MDM); NETWORKS-ON-CHIP; SILICON; COMPACT; (DE)MULTIPLEXER; MULTIPLEXER; MODULATORS; PHOTONICS;

D O I：

10.1021/acsphotonics.2c01364

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mode-division-multiplexing technology is highly attractive to increase the capacity of optical interconnects. Various multimode operations have been investigated, among which optical mode switches provide one of the most important functions in mode-division-multiplexing systems. However, current optical mode switches have a non-negligible switching time, which can lead to an undesired cumulative delay in the optical network. In this contribution, we propose and experimentally demonstrate an optical mode switch using a three-waveguide-coupling structure in the lithium niobate on insulator platform. The demonstrated optical mode switch has an insertion loss of 4.3 dB, an extinction ratio of 17.1 dB, and a switching time of below 28 ps. This work paves the way for future chip-scale high-speed mode-division-multiplexing systems.

引用

页码：2257 / 2263

页数：7

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