Interferometric filtering of the excess relative intensity noise of the broadband source of a fiber optic gyroscope

Joachin Honthaas; Jean-Jacques Bonnefois; Eric Ducloux; Hervé Lefèvre

doi:10.1117/12.2059578

2 June 2014 Interferometric filtering of the excess relative intensity noise of the broadband source of a fiber optic gyroscope

Joachin Honthaas, Jean-Jacques Bonnefois, Eric Ducloux, Hervé Lefèvre

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91572D (2014) https://doi.org/10.1117/12.2059578
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We present a new method of reduction of the excess RIN (relative intensity noise) of the broadband source of a fiber-optic gyroscope (FOG). It is based upon the use of an interferometric filter which reduces the excess RIN at the proper frequency of the sensing coil. We demonstrate that a fiber-optic ring resonator can provide a RIN power density reduction (PSD) of 18dB allowing the FOG to operate near the photonnoise limit.

Citation Download Citation

Joachin Honthaas, Jean-Jacques Bonnefois, Eric Ducloux, and Hervé Lefèvre "Interferometric filtering of the excess relative intensity noise of the broadband source of a fiber optic gyroscope", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91572D (2 June 2014); https://doi.org/10.1117/12.2059578

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