A new measurement algorithm for the 3 x 3 fiber optic Sagnac interferometer

Jan Bechtle; Gert F. Trommer

doi:10.1117/12.624407

23 May 2005 A new measurement algorithm for the 3 x 3 fiber optic Sagnac interferometer

Jan Bechtle, Gert F. Trommer

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.624407
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

We developed a new measurement algorithm which enables fiber optic sensors based on the 3 x 3 Sagnac interferometer to have a dynamic range which is limited only by the speed of the electronics measuring the signals of the photodetectors. Fiber optic current sensors and fiber optic gyroscopes using our algorithm can measure arbitrary large input and improve precision by using longer fiber coils. We proved the concept by building a passive fiber optic gyroscope.

Citation Download Citation

Jan Bechtle and Gert F. Trommer "A new measurement algorithm for the 3 x 3 fiber optic Sagnac interferometer", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.624407

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