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arXiv · 1212.5717

A Large Area Fiber Optic Gyroscope on multiplexed fiber network

Cecilia Clivati·Davide Calonico·Giovanni A. Costanzo·Alberto Mura·Marco Pizzocaro·Filippo Levi
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Abstract

We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km^2 and coexists with Internet data traffic. This Sagnac interferometer achieves a sensitivity of about 1e-8 (rad/s)/sqrt(Hz), thus approaching ring laser gyroscopes without using narrow-linewidth laser nor sophisticated optics. The proposed gyroscope is sensitive enough for seismic applications, opening new possibilities for this kind of optical fiber sensors

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Cecilia Clivati, Davide Calonico, Giovanni A. Costanzo, Alberto Mura, Marco Pizzocaro, Filippo Levi. 2013-01-11. A Large Area Fiber Optic Gyroscope on multiplexed fiber network. https://doi.org/10.1364/ol.38.001092

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