Abstract

In this Letter, two gyro outputs containing identical rotation rates are produced by a twin-peaks light source with peak wavelengths of 1530 nm and 1560 nm. We demonstrate that the two outputs’ ratio $\kappa$ can compensate for the temperature-induced scale factor drift in an interferometric fiber-optic gyroscope (IFOG). When the temperature ranged from ${-}{10^\circ {\rm C}}$ to 50°C, the scale factor drift after compensation was about 30 times less than that before compensation, and the minimum drift was ${\pm}7.7\;{\rm ppm}$ at the rotation rate of 100°/s.

© 2020 Optical Society of America

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