{"title":"基于双环结构的双轴光学陀螺仪的相位偏置","authors":"Hong Gu, Dan Yang, Wenbin Wang","doi":"10.1109/ICOCN53177.2021.9563747","DOIUrl":null,"url":null,"abstract":"A two axes fiber optical gyroscope comprising a two loops structure (TLS) using a 3 × 3 coupler is presented. The length of the two loops is 2 m and 1.8 m. When one of the two axes is vertical to another, a dual-axis gyroscope comes into being. The phase difference between the counter-propagating waves in TLS is calculated and discussed. The sensitivity can be improved by adding a bias phase, but only if the phase difference is a monotonic function of the angular rate, with the best sensitivity obtained by adding a phase bias of ±3π/2.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Phase bias in dual-axis optical gyroscope based on a double-ring structure\",\"authors\":\"Hong Gu, Dan Yang, Wenbin Wang\",\"doi\":\"10.1109/ICOCN53177.2021.9563747\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A two axes fiber optical gyroscope comprising a two loops structure (TLS) using a 3 × 3 coupler is presented. The length of the two loops is 2 m and 1.8 m. When one of the two axes is vertical to another, a dual-axis gyroscope comes into being. The phase difference between the counter-propagating waves in TLS is calculated and discussed. The sensitivity can be improved by adding a bias phase, but only if the phase difference is a monotonic function of the angular rate, with the best sensitivity obtained by adding a phase bias of ±3π/2.\",\"PeriodicalId\":6756,\"journal\":{\"name\":\"2021 19th International Conference on Optical Communications and Networks (ICOCN)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 19th International Conference on Optical Communications and Networks (ICOCN)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICOCN53177.2021.9563747\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICOCN53177.2021.9563747","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Phase bias in dual-axis optical gyroscope based on a double-ring structure
A two axes fiber optical gyroscope comprising a two loops structure (TLS) using a 3 × 3 coupler is presented. The length of the two loops is 2 m and 1.8 m. When one of the two axes is vertical to another, a dual-axis gyroscope comes into being. The phase difference between the counter-propagating waves in TLS is calculated and discussed. The sensitivity can be improved by adding a bias phase, but only if the phase difference is a monotonic function of the angular rate, with the best sensitivity obtained by adding a phase bias of ±3π/2.