Open-loop output and scale factor stability in a fiber-optic gyroscope
- 1 February 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 7 (2) , 262-269
- https://doi.org/10.1109/50.17765
Abstract
An all-fiber open-loop, fiber-optic interferometric gyro with polarization-preserving fiber with 14-dB insertion loss and 20-dB polarization extinction is described. The random drift coefficient is 3.2*10/sup -40// square root h for a 1-km coil length on a 16-cm radius. Bias drift is within 0.03 degrees /h over three days. Source coherence effects and optical feedback are shown to result in additional terms in the demodulated output, which can be corrected for. A procedure for obtaining scale-factor coefficients is described. With modeling for temperature and source drive current, these coefficients are measured to be stable within 32 p.p.m. over 12 days.Keywords
This publication has 10 references indexed in Scilit:
- Observation of coherence effects in a quasi-monochromatic fiber-optic gyroscopeJournal of Lightwave Technology, 1987
- A Constant Accuracy, High Dynamic Range Fiber Optic GyroscopePublished by SPIE-Intl Soc Optical Eng ,1987
- Double closed-loop hybrid fiber gyroscope using digital phase rampPublished by Optica Publishing Group ,1985
- All-fiber gyroscope with polarization-holding fiberOptics Letters, 1984
- All-PANDA-fibre gyroscope with long-term stabilityElectronics Letters, 1984
- Fiber-optic gyroscope with polarization-holding fiberOptics Letters, 1983
- Compensation Of Linear Sources Of Non-Reciprocity In Sagnac InterferometersPublished by SPIE-Intl Soc Optical Eng ,1983
- Fiber-optic gyroscopes with broad-band sourcesJournal of Lightwave Technology, 1983
- All-fiber gyroscope with inertial-navigation short-term sensitivityOptics Letters, 1982
- Fiber-optic rotation sensing with low driftOptics Letters, 1980