Compensation of Excess RIN in Fiber-Optic Gyro
https://doi.org/10.17285/0869-7035.2016.24.2.020-032
Abstract
The paper describes the sources of fundamental noises in FOG measurement signal. Methods of excess relative intensity noise (RIN) compensation are considered. Technique improving the compensation method using division of signals from two photodetectors for noise suppression is proposed and implemented. Functional simulation is conducted, which estimates the limiting theoretical value of noise suppression by the selected compensation method with the photodetector power of min 10 μW. Test results for FOG experimental prototype are presented. Allan variance plots for the cases with and without compensation are constructed.
About the Authors
A. S. Aleinik
ITMO University, St. Petersburg
Russian Federation
Russian Federation
I. G. Deineka
ITMO University, St. Petersburg
Russian Federation
Russian Federation
M. A. Smolovik
ITMO University, St. Petersburg
Russian Federation
Russian Federation
S. T. Neforosnyi
Concern CSRI Elektropribor, JSC, St. Petersburg
Russian Federation
Russian Federation
A. V. Rupasov
Concern CSRI Elektropribor, JSC, St. Petersburg
Russian Federation
Russian Federation
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Review
For citations:
Aleinik A.S., Deineka I.G., Smolovik M.A., Neforosnyi S.T., Rupasov A.V. Compensation of Excess RIN in Fiber-Optic Gyro. Giroskopiya i Navigatsiya. 2016;24(2):20-32. (In Russ.) https://doi.org/10.17285/0869-7035.2016.24.2.020-032
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