Open-Loop Experiments in a Resonator Fiber-Optic Gyro Using Digital Triangle Wave Phase Modulation

Author

Jin, Zhonghe ; Yang, Zhihuai ; Ma, Huilian ; Ying, Diqing

Author_Institution

ZheJiang Univ., Hang Zhou

Volume

19

Issue

20

fYear

2007

Firstpage

1685

Lastpage

1687

Abstract

A resonator fiber-optic gyro (R-FOG) is a high accuracy inertial rotation sensor based on the Sagnac effect. We construct an open-loop operation R-FOG based on the digital triangle wave phase modulation technique, which is free of pulse noise induced by phase reset and also advantageous of reducing the backscattering noise. Experimental results show that the dynamic range and the bias drift of the R-FOG are 3.37 and 0.012 rad/s over 5 s, respectively.

Keywords

backscatter; fibre optic gyroscopes; optical modulation; optical noise; optical resonators; phase modulation; Sagnac effect; backscattering noise; digital phase modulation; high accuracy inertial rotation sensor; inertial rotation sensor; open-loop experiments; resonator fiber-optic gyro; time 5 s; triangle wave phase modulation; Coils; Fiber lasers; Noise reduction; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Optical fiber theory; Phase modulation; Phase noise; Sagnac interferometers; Digital triangle wave phase modulation; open-loop experiments; resonator fiber-optic gyro (R-FOG);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.905049

Filename

4339517