光纤环形谐振腔输入功率波动对谐振式光纤陀螺的影响

郑华; 郑永秋; 安盼龙; 张婷; 卢晓云; 薛晨阳

doi:10.3788/IRLA201645.1122002

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光纤环形谐振腔输入功率波动对谐振式光纤陀螺的影响

郑华, 郑永秋, 安盼龙, 张婷, 卢晓云, 薛晨阳

文章导航 > 红外与激光工程 > 2016 > 45(11): 1122002-1122002(5)

郑华, 郑永秋, 安盼龙, 张婷, 卢晓云, 薛晨阳. 光纤环形谐振腔输入功率波动对谐振式光纤陀螺的影响[J]. 红外与激光工程, 2016, 45(11): 1122002-1122002(5). doi: 10.3788/IRLA201645.1122002

引用本文:

Zheng Hua, Zheng Yongqiu, An Panlong, Zhang Ting, Lu Xiaoyun, Xue Chenyang. Effect of input intensity fluctuation of fiber ring resonator on resonator fiber optic gyroscope[J]. Infrared and Laser Engineering, 2016, 45(11): 1122002-1122002(5). doi: 10.3788/IRLA201645.1122002

Citation:

Zheng Hua, Zheng Yongqiu, An Panlong, Zhang Ting, Lu Xiaoyun, Xue Chenyang. Effect of input intensity fluctuation of fiber ring resonator on resonator fiber optic gyroscope[J]. Infrared and Laser Engineering, 2016, 45(11): 1122002-1122002(5). doi: 10.3788/IRLA201645.1122002

光纤环形谐振腔输入功率波动对谐振式光纤陀螺的影响

doi: 10.3788/IRLA201645.1122002

1.
中北大学电子测试技术重点实验室,山西太原 030051;
2.
中北大学仪器科学与动态测试教育部重点实验室,山西太原 030051

基金项目:

国家自然科学基金（91123036）

详细信息

作者简介:
郑华(1991-),男,硕士生,主要从事微纳光纤传感方面的研究。Email:18334792568@163.com

中图分类号: TN252

Effect of input intensity fluctuation of fiber ring resonator on resonator fiber optic gyroscope

1.
Science and Technology on Electronic Test & Measurement Laboratory,North University of China,Taiyuan 030051,China;
2.
Key Laboratory of Instrumentation Science & Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China

摘要: 谐振式光纤陀螺是一种基于Sagnac效应的高精度惯性传感器。作为一种互异性噪声，光纤谐振腔输入功率的波动会造成陀螺的检测误差。首先，分析了光纤谐振腔输入功率波动产生噪声的机理。通过对不同输入功率下的谐振腔传输特性和陀螺解调输出的理论及实验分析得到了谐振腔输入功率波动引起的检测误差的表达式。当输入角速度为500（）/s、输入功率为0.69 mW时，0.007 5 mW的功率波动会引起5.26（）/s的检测误差。其次，研究了谐振腔输入功率波动对陀螺标度因数的影响。通过计算发现随着输入功率波动的增大，解调曲线的线性区将会发生扭曲，同时陀螺的标度因数非线性度会恶化，为谐振式光纤陀螺中输入功率波动噪声的估测提供了参考。
- 谐振腔 /
- 光纤陀螺 /
- 噪声 /
- 灵敏度
Abstract: Resonator fiber optic gyro (RFOG) is a high accuracy inertial rotation sensor based on Sagnac effect. As one of reciprocity noises in RFOG, input intensity fluctuation of fiber ring resonator (FRR) would lead to detection error. Firstly, the mechanism of noise induced by FRR input intensity fluctuation was investigated. Transmission characters of FRR and demodulation output with different input intensities were researched theoretically and experimentally. The expression of detection error caused by input intensity fluctuation was derived. When rotation rate was 500 ()/s and input intensity was 0.69 mW, a variation of 0.0075mW would cause an error as large as 5.26 ()/s. Secondly, the effect of input intensity fluctuation on scale factor was studied. It was found that the linear region of demodulation curve would be distorted as input intensity fluctuation increase and scale factor nonlinearity of gyro output would deteriorate too. This work proved a reference for estimating input intensity fluctuation noise in a RFOG system.
- resonator /
- fiber gyroscope /
- noise /
- sensitivity

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光纤环形谐振腔输入功率波动对谐振式光纤陀螺的影响

doi: 10.3788/IRLA201645.1122002

1. 中北大学电子测试技术重点实验室,山西太原 030051;

2. 中北大学仪器科学与动态测试教育部重点实验室,山西太原 030051

作者简介:
郑华(1991-),男,硕士生,主要从事微纳光纤传感方面的研究。Email:18334792568@163.com

收稿日期: 2016-03-12
修回日期: 2016-04-17
刊出日期: 2016-11-25

基金项目:

国家自然科学基金（91123036）

中图分类号: TN252

关键词:

谐振腔 /
光纤陀螺 /
噪声 /
灵敏度

摘要: 谐振式光纤陀螺是一种基于Sagnac效应的高精度惯性传感器。作为一种互异性噪声，光纤谐振腔输入功率的波动会造成陀螺的检测误差。首先，分析了光纤谐振腔输入功率波动产生噪声的机理。通过对不同输入功率下的谐振腔传输特性和陀螺解调输出的理论及实验分析得到了谐振腔输入功率波动引起的检测误差的表达式。当输入角速度为500（）/s、输入功率为0.69 mW时，0.007 5 mW的功率波动会引起5.26（）/s的检测误差。其次，研究了谐振腔输入功率波动对陀螺标度因数的影响。通过计算发现随着输入功率波动的增大，解调曲线的线性区将会发生扭曲，同时陀螺的标度因数非线性度会恶化，为谐振式光纤陀螺中输入功率波动噪声的估测提供了参考。

English Abstract

Effect of input intensity fluctuation of fiber ring resonator on resonator fiber optic gyroscope

1. Science and Technology on Electronic Test & Measurement Laboratory,North University of China,Taiyuan 030051,China;

2. Key Laboratory of Instrumentation Science & Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China

Received Date: 2016-03-12
Rev Recd Date: 2016-04-17
Publish Date: 2016-11-25

Keywords:

Abstract: Resonator fiber optic gyro (RFOG) is a high accuracy inertial rotation sensor based on Sagnac effect. As one of reciprocity noises in RFOG, input intensity fluctuation of fiber ring resonator (FRR) would lead to detection error. Firstly, the mechanism of noise induced by FRR input intensity fluctuation was investigated. Transmission characters of FRR and demodulation output with different input intensities were researched theoretically and experimentally. The expression of detection error caused by input intensity fluctuation was derived. When rotation rate was 500 ()/s and input intensity was 0.69 mW, a variation of 0.0075mW would cause an error as large as 5.26 ()/s. Secondly, the effect of input intensity fluctuation on scale factor was studied. It was found that the linear region of demodulation curve would be distorted as input intensity fluctuation increase and scale factor nonlinearity of gyro output would deteriorate too. This work proved a reference for estimating input intensity fluctuation noise in a RFOG system.