The fiber-optic gyroscope started to be investigated 35 years ago, opening the way for a fully solid-state rotation sensor.
It was firstly seen as limited to medium-grade applications, but today, it reaches ultimate theoretical performance and
surpasses its well-established competitor, the ring laser gyroscope, in terms of bias noise and long-term stability.
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Hervé C. Lefevre
The fiber-optic gyroscope: actually better than the ring-laser gyroscope?
", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842104 (October 4, 2012); doi:10.1117/12.978920; http://dx.doi.org/10.1117/12.978920