Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator

In this paper we design, simulate, and analyze single-mode microring resonators in thin films of z-cut lithium tantalate. They operate at wavelengths that are approximately equal to 1.55 μm. The single-mode conditions and transmission losses of lithium tantalate waveguides are simulated for differen...

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Main Authors: Siyang Yao, Huangpu Han, Shangen Jiang, Bingxi Xiang, Guangyue Chai, Shuangchen Ruan
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/11/5/480
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author Siyang Yao
Huangpu Han
Shangen Jiang
Bingxi Xiang
Guangyue Chai
Shuangchen Ruan
author_facet Siyang Yao
Huangpu Han
Shangen Jiang
Bingxi Xiang
Guangyue Chai
Shuangchen Ruan
author_sort Siyang Yao
collection DOAJ
description In this paper we design, simulate, and analyze single-mode microring resonators in thin films of z-cut lithium tantalate. They operate at wavelengths that are approximately equal to 1.55 μm. The single-mode conditions and transmission losses of lithium tantalate waveguides are simulated for different geometric parameters and silica thicknesses. An analysis is presented on the quality factor and free spectral range of the microring resonators in lithium tantalate at contrasting radii and gap sizes. The electro-optical modulation performance is analyzed for microring resonators with a radius of 20 μm. Since they have important practical applications, the filtering characteristics of the microring resonators that contain two straight waveguides are analyzed. This work enhances the knowledge of lithium tantalate microring structures and offers guidance on the salient parameters for the fabrication of highly efficient multifunctional photonic integrated devices, such as tunable filters and modulators.
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spelling doaj.art-071eb76795224af29c9ef457a2d357e52023-11-21T17:06:21ZengMDPI AGCrystals2073-43522021-04-0111548010.3390/cryst11050480Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on InsulatorSiyang Yao0Huangpu Han1Shangen Jiang2Bingxi Xiang3Guangyue Chai4Shuangchen Ruan5College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, ChinaSchool of Mechanical Engineering, Zibo Vocational Institute, Zibo 255314, ChinaCollege of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, ChinaCollege of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, ChinaCollege of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, ChinaCollege of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, ChinaIn this paper we design, simulate, and analyze single-mode microring resonators in thin films of z-cut lithium tantalate. They operate at wavelengths that are approximately equal to 1.55 μm. The single-mode conditions and transmission losses of lithium tantalate waveguides are simulated for different geometric parameters and silica thicknesses. An analysis is presented on the quality factor and free spectral range of the microring resonators in lithium tantalate at contrasting radii and gap sizes. The electro-optical modulation performance is analyzed for microring resonators with a radius of 20 μm. Since they have important practical applications, the filtering characteristics of the microring resonators that contain two straight waveguides are analyzed. This work enhances the knowledge of lithium tantalate microring structures and offers guidance on the salient parameters for the fabrication of highly efficient multifunctional photonic integrated devices, such as tunable filters and modulators.https://www.mdpi.com/2073-4352/11/5/480microring resonatorvarFDTDlithium tantalate thin filmelectro-optical devices
spellingShingle Siyang Yao
Huangpu Han
Shangen Jiang
Bingxi Xiang
Guangyue Chai
Shuangchen Ruan
Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
Crystals
microring resonator
varFDTD
lithium tantalate thin film
electro-optical devices
title Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
title_full Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
title_fullStr Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
title_full_unstemmed Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
title_short Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator
title_sort design simulation and analysis of optical microring resonators in lithium tantalate on insulator
topic microring resonator
varFDTD
lithium tantalate thin film
electro-optical devices
url https://www.mdpi.com/2073-4352/11/5/480
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