Resonant fiber optic gyroscope driven by a broadband light source based on an over-coupled state fiber ring resonator

被引：1

作者：

Xu, Kai ^{[1
,2
]}

Zhou, Yanru ^{[1
,3
,4
]}

Xue, Fanyan ^{[5
]}

Wang, Yulin ^{[1
,2
]}

Liu, Wenyao ^{[1
,2
]}

Tang, Jun ^{[1
,2
]}

机构：

[1] North Univ China, Key Lab Quantum Sensing & Precis Measurement, Taiyuan 030051, Shanxi, Peoples R China

[2] North Univ China, Sch Instrument & Electrons, Taiyuan 030051, Shanxi, Peoples R China

[3] North Univ China, Sch Informat & Commun Engn, Taiyuan 030051, Shanxi, Peoples R China

[4] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China

[5] North Automatic Control Technol Inst, Taiyuan 030006, Shanxi, Peoples R China

来源：

APPLIED OPTICS | 2024年 / 63卷 / 18期

基金：

中国国家自然科学基金;

关键词：

ROTATION;

D O I：

10.1364/AO.525243

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The resonant fiber optic gyroscope (RFOG) driven by a broadband light source has advantages over conventional RFOGs in terms of structure, solution, etc., and provides new ideas for the commercialization of RFOGs. In this paper, the basic working principle of RFOG driven by a broadband light source is introduced. The optimal modulation coefficients are provided for sinusoidal wave modulation. The influence of the length of the fiber-optic ring resonator (FRR) and the coupling coefficient of the fiber coupler on the sensitivity is analyzed. The FRR is constructed in the over -coupled state to improve the utilization of optical power, and thus significantly increase the system sensitivity. In experiments, an RFOG prototype with a diameter of 13 cm, a height of 7 cm, and a fiber ring length of 210 m is produced. A bias instability (BI) of 0.06 degrees /h and an angular random walk (ARW) of 0.01 degrees / root h are obtained. (c) 2024 Optica Publishing Group

引用

页码：4840 / 4847

页数：8