Optical Gyroscope Based on Multi-gap Surface Plasmon Optical Waveguide

Ji  Liu; Lixia Yu; Jinhui Wu

doi:10.6180/jase.201906_22(2).0011

Optical Gyroscope Based on Multi-gap Surface Plasmon Optical Waveguide

Electrical Engineering Electro-Mechanical Engineering

Ji Liu This email address is being protected from spambots. You need JavaScript enabled to view it.^1,2, Lixia Yu¹ and Jinhui Wu²

¹School of Information and Communications Engineering, North University of China, Taiyuan, 030051, P.R. China
²Science and Technology on Electronic Test and Measurement Laboratory, Taiyuan, 030051, P.R. China

Received: January 4, 2019
Accepted: March 4, 2019
Publication Date: June 1, 2019

Download Citation: ||https://doi.org/10.6180/jase.201906_22(2).0011

ABSTRACT

In this paper, a kind of optical gyroscope based on multi-gap surface plasmon optical waveguide was designed. The key component was multi-gap surface plasmon waveguide ring resonator. Through the finite element method, the dependence between the transmission characteristics of resonator and the number of metallic film, the gap width and the bending radius was calculated in details. The results show that the higher detection sensitivity can be obtained by optimizing the parameters of geometric structure. When the coupling ratio was over 60%, the optimal metal film number was five, the optimal gap width was 1 m and the optimal bending radius was 3 cm, the detection sensitivity of the optical gyroscope was up to 3 deg/h. The research can provide a theoretical basis for the miniaturization of integrated optical gyroscope.

Keywords: Integrated Optical Gyroscope, Optical Waveguide, Vertical Surface Plasmon, Multi-gap Structure, Sensitivity

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