Title :
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
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);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.905049
