Chinese Optics Letters, 2009, 7 (9): 798, Published Online: Sep. 22, 2009
A novel accelerometer based on microring resonator Download: 849次
Abstract
A novel microring resonator accelerometer is proposed. It is realized by a suspended straight waveguide coupled with a microring resonator. Under the external acceleration, the coupling coefficient is a function of gap spacing between the two waveguides. The mathematical model of the sensing element is established. Both the finite element method and coupled mode theory are adopted to analyze and optimize the proposed structure. Simulation results show that the mechanical sensitivity is 0.015 \mu m/g with the working frequency below 500 Hz and cross-axis sensitivity less than 0.001%, which is promising in seismic related applications.
Wenqin Mo, Huaming Wu, Dingshan Gao, Zhiping Zhou. A novel accelerometer based on microring resonator[J]. Chinese Optics Letters, 2009, 7(9): 798.