5 March 1993 Second harmonic detection for rotation sensing in fiber optic gyros
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Proceedings Volume 1795, Fiber Optic and Laser Sensors X; (1993); doi: 10.1117/12.141279
Event: Fibers '92, 1992, Boston, MA, United States
Abstract
Recirculating light in a fiber optic gyro can cause significant scale factor distortions and uncertainty when the signal processing makes use of the second harmonic of the bias modulation to sense rotation. Significant reduction of this problem can be realized by operating the gyro at particular modulation depths and/or at one-half the proper frequency.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James N. Blake, Salar Navidi, "Second harmonic detection for rotation sensing in fiber optic gyros", Proc. SPIE 1795, Fiber Optic and Laser Sensors X, (5 March 1993); doi: 10.1117/12.141279; https://doi.org/10.1117/12.141279
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KEYWORDS
Gyroscopes

Fiber optic gyroscopes

Modulation

Phase shifts

Light

Fiber optics

Fiber optics sensors

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