Title :
Bias of a resonator fiber optic gyro composed of a polarization-maintaining fiber ring resonator with the photoinduced birefringent grating
Author :
Shi, Chao-Xiang ; Hotate, Kazuo
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
fDate :
9/1/1995 12:00:00 AM
Abstract :
A theoretical study of the polarization-fluctuation induced bias of an resonator fiber optic gyro (R-FOG), which employs a polarization-maintaining fiber ring resonator with a photoinduced birefringent grating, is presented. The polarization conversion due to the photoinduced birefringent grating can stabilize the resonator output, which result in the reduction of the bias in the R-FOG output. The influences of the parameters, such as the fluctuation of the input polarization, the resonator finesse, and the photoinduced index change of the dielectric tensor, on the bias in the gyro-output have been investigated. Our results show that with the help of a photoinduced birefringent grating the bias in the gyro-output can be limited around 10-7 rad/s (0.02 deg/hr), a typical specification for the aircraft-navigation
Keywords :
aircraft navigation; birefringence; diffraction gratings; fibre optic sensors; fluctuations; gyroscopes; optical fibre polarisation; optical fibre theory; optical resonators; aircraft-navigation; dielectric tensor; fluctuation; input polarization; photoinduced birefringent grating; photoinduced index change; polarization-fluctuation induced bias; polarization-maintaining fiber ring resonator; resonator fiber optic gyro; resonator finesse; resonator output stabilisation; Birefringence; Fiber gratings; Fluctuations; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical resonators; Optical ring resonators; Resonance; Rotation measurement;
Journal_Title :
Lightwave Technology, Journal of
Conference_Location :
9/1/1995 12:00:00 AM