Title :
Frequency division multiplexing of fiber-optic gyroscopes
Author :
Jin, Wei ; Culshaw, Brian
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
fDate :
10/1/1992 12:00:00 AM
Abstract :
The principle of operation of a 2-D frequency-division-multiplexed fiber-optic gyroscope (FDM-FOG) system is presented under the assumption that the two gyro signals do not interfere with each other. The theory is expanded to include the residual cross-interference effect, which may be minimized by proper choice of modulation depths or frequencies. A 2-D FDM-FOG system is realized with a noise equivalent rotation rate of 0.23°/h (0.25 Hz NEB)
Keywords :
fibre optic sensors; frequency division multiplexing; gyroscopes; light interference; optical modulation; 2D; FDM-FOG; fiber-optic gyroscopes; frequency-division-multiplexed fiber-optic gyroscope; gyro signals; modulation depths; noise equivalent rotation rate; residual cross-interference effect; Crosstalk; Frequency division multiplexing; Frequency modulation; Gyroscopes; Optical fiber polarization; Optical fiber theory; Optical filters; Optical sensors; WDM networks; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
