Highly efficient thermo-optic tunable micro-ring resonator based on an LNOI platform

被引：60

作者：

Liu, Xiaoyue ^{[1
]}

Ying, Pan ^{[1
]}

Zhong, Xuming ^{[1
]}

Xu, Jian ^{[2
]}

Han, Ya ^{[1
]}

Yu, Siyuan ^{[1
]}

Cai, Xinlun ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

[2] South China Univ Technol, Tourism Management Dept, State Key Lab Subtrop Bldg Sci, Guangzhou 510641, Peoples R China

来源：

OPTICS LETTERS | 2020年 / 45卷 / 22期

基金：

中国国家自然科学基金;

关键词：

LITHIUM-NIOBATE; HYBRID SILICON;

D O I：

10.1364/OL.410192

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a high-efficiency thermo-optic (TO) tunable micro-ring resonator in thin-film lithium niobate. Thermal insulation trenches around the heated micro-ring resonator and the underlying silicon substrate significantly reduce the heating power consumption and improve the tuning efficiency. Compared to conventional TO devices without thermal insulation trenches, the proposed device achieves a full free spectral range wavelength shift with a 14.9 mW heating power, corresponding to a thermal tuning efficiency of 53.7 pm/mW, a more than 20-fold improvement of tuning efficiency. The approach enables energy-efficient high-performance TO devices such as optical switches, wavelength routers, and other reconfigurable photonic devices. (C) 2020 Optical Society of America

引用

页码：6318 / 6321

页数：4

共 27 条

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