Navigation-Grade Laser-Driven Fiber-Optic Gyroscope
EDN: WUICMV
Abstract
The scale factor stability of a fiber-optic gyroscope (FOG) directly depends on the stability of the central wavelength of its optical source. Although broadband, highly stable light sources used in high-precision FOGs provide excellent wavelength stability, they are typically bulky, which complicates the miniaturization of FOGs and FOG-based systems. This work investigates the use of a semiconductor laser diode with pulse-frequency current modulation in a navigation-grade FOG. It is shown that this approach provides superior central-wavelength stability (better than 1.6 ppm), resulting in a FOG angle random walk and bias instability of 0.002°/?h and 0.009°/h, respectively. Comparable performance can be obtained in FOGs employing broadband, highly stable light sources.
About the Authors
A. S. Aleinik
ITMO University
Russian Federation
Russian Federation
St. Petersburg
S. A. Volkovsky
ITMO University
Russian Federation
Russian Federation
St. Petersburg
V. S. Oshlakov
ITMO University
Russian Federation
Russian Federation
St. Petersburg
A. B. Mukhtubaev
ITMO University
Russian Federation
Russian Federation
St. Petersburg
V. E. Strigalev
ITMO University
Russian Federation
Russian Federation
St. Petersburg
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Review
For citations:
Aleinik A.S., Volkovsky S.A., Oshlakov V.S., Mukhtubaev A.B., Strigalev V.E. Navigation-Grade Laser-Driven Fiber-Optic Gyroscope. Giroskopiya i Navigatsiya. 2025;33(3):103-111. (In Russ.) EDN: WUICMV
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