Topological Nanophotonic Wavelength Router Based on Topology Optimization

被引：12

作者：

Yuan, Hongyi ^{[1
]}

Liu, Zhouhui ^{[1
]}

Wei, Maoliang ^{[2
]}

Lin, Hongtao ^{[2
]}

Hu, Xiaoyong ^{[3
]}

Lu, Cuicui ^{[1
,4
]}

机构：

[1] Beijing Inst Technol, Sch Phys,Minist Educ, Key Lab Adv Optoelect Quantum Architecture & M, Beijing Key Lab Nanophoton & Ultrafine Optoelect, Beijing 100081, Peoples R China

[2] Zhejiang Univ, Coll Informat Sci & Elect Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China

[3] Peking Univ, Beijing Acad Quantum Informat Sci, State Key Lab Mesoscop Phys,Ctr NanoOptoelect, Dept Phys,Collaborative Innovat Ctr Quantum Matte, Beijing 100081, Peoples R China

[4] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China

来源：

MICROMACHINES | 2021年 / 12卷 / 12期

基金：

中国国家自然科学基金;

关键词：

on-chip integration; topological photonic crystal; wavelength router; topology optimization; DESIGN;

D O I：

10.3390/mi12121506

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The topological nanophotonic wavelength router, which can steer light with different wavelength signals into different topological channels, plays a key role in optical information processing. However, no effective method has been found to realize such a topological nanophotonic device. Here, an on-chip topological nanophotonic wavelength router working in an optical telecom band is designed based on a topology optimization algorithm and experimentally demonstrated. Valley photonic crystal is used to provide a topological state in the optical telecom band. The measured topological wavelength router has narrow signal peaks and is easy for integration. This work offers an efficient scheme for the realization of topological devices and lays a foundation for the future application of topological photonics.

引用

页数：9

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