High-Q titanium dioxide micro-ring resonators for integrated nonlinear photonics

We report on the nonlinear characterizations of the titanium dioxide micro-ring resonators (TiO MRRs). By utilizing optimized fabrication processes, high quality factors (Q∼1.4 × 10 ) doubling that of the previous work are achieved here for TiO MRRs with high-confinement TiO waveguides. The four-wav...

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Published inOptics express Vol. 28; no. 26; pp. 39084 - 39092
Main Authors Fu, Meicheng, Zheng, Yi, Li, Gaoyuan, Hu, Hao, Pu, Minhao, Oxenløwe, Leif Katsuo, Frandsen, Lars Hagedorn, Li, Xiujian, Guan, Xiaowei
Format Journal Article
LanguageEnglish
Published United States 21.12.2020
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Summary:We report on the nonlinear characterizations of the titanium dioxide micro-ring resonators (TiO MRRs). By utilizing optimized fabrication processes, high quality factors (Q∼1.4 × 10 ) doubling that of the previous work are achieved here for TiO MRRs with high-confinement TiO waveguides. The four-wave mixing (FWM) experiment results with low and high signal power demonstrate that, the fabricated TiO MRRs can perform broadband (∼40 nm) wavelength conversion and cascaded FWMs. These achievements pave the way for key nonlinear photonic applications with TiO waveguides and provide an efficient platform for various integrated photonic devices.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.404821