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Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes
The Resonant Integrated Optic Gyroscope (RIOG) is a type of high accuracy gyroscope based on the Sagnac effect. A symmetrical resonance curve is very important to the performance of the RIOG. To further investigate and design a RIOG with a waveguide ring resonator, an in-depth research of the asymme...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695801/ https://www.ncbi.nlm.nih.gov/pubmed/31357592 http://dx.doi.org/10.3390/s19153305 |
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author | He, Yu Ming Yang, Fu Hua Yan, Wei Han, Wei Hua Li, Zhao Feng |
author_facet | He, Yu Ming Yang, Fu Hua Yan, Wei Han, Wei Hua Li, Zhao Feng |
author_sort | He, Yu Ming |
collection | PubMed |
description | The Resonant Integrated Optic Gyroscope (RIOG) is a type of high accuracy gyroscope based on the Sagnac effect. A symmetrical resonance curve is very important to the performance of the RIOG. To further investigate and design a RIOG with a waveguide ring resonator, an in-depth research of the asymmetric resonance curve and its influence on the RIOG is fully developed. Four possible optical noises inducing the resonance curve asymmetry are analyzed and their mathematic models are established. These four optical noises are the normal mode effect, the backscattering noise, the backreflection noise and the polarization noise. Any asymmetry of the resonance curve will not only induce a large output bias error into the gyro output, but also seriously decrease the frequency discrimination parameter of the demodulation curve. By using a tunable fiber laser, the high aspect ratio silicon nitride WRR and the silicon dioxide WRR were tested. The experiment measured resonance curves can be well fitted with the theoretical simulation results. The experimental results show that a high aspect ratio silicon nitride waveguide can effectively suppress the polarization noise in the RIOG. |
format | Online Article Text |
id | pubmed-6695801 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66958012019-09-05 Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes He, Yu Ming Yang, Fu Hua Yan, Wei Han, Wei Hua Li, Zhao Feng Sensors (Basel) Article The Resonant Integrated Optic Gyroscope (RIOG) is a type of high accuracy gyroscope based on the Sagnac effect. A symmetrical resonance curve is very important to the performance of the RIOG. To further investigate and design a RIOG with a waveguide ring resonator, an in-depth research of the asymmetric resonance curve and its influence on the RIOG is fully developed. Four possible optical noises inducing the resonance curve asymmetry are analyzed and their mathematic models are established. These four optical noises are the normal mode effect, the backscattering noise, the backreflection noise and the polarization noise. Any asymmetry of the resonance curve will not only induce a large output bias error into the gyro output, but also seriously decrease the frequency discrimination parameter of the demodulation curve. By using a tunable fiber laser, the high aspect ratio silicon nitride WRR and the silicon dioxide WRR were tested. The experiment measured resonance curves can be well fitted with the theoretical simulation results. The experimental results show that a high aspect ratio silicon nitride waveguide can effectively suppress the polarization noise in the RIOG. MDPI 2019-07-27 /pmc/articles/PMC6695801/ /pubmed/31357592 http://dx.doi.org/10.3390/s19153305 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article He, Yu Ming Yang, Fu Hua Yan, Wei Han, Wei Hua Li, Zhao Feng Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title | Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title_full | Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title_fullStr | Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title_full_unstemmed | Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title_short | Asymmetry Analysis of the Resonance Curve in Resonant Integrated Optical Gyroscopes |
title_sort | asymmetry analysis of the resonance curve in resonant integrated optical gyroscopes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695801/ https://www.ncbi.nlm.nih.gov/pubmed/31357592 http://dx.doi.org/10.3390/s19153305 |
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