Measurement device of a fiber optic gyroscope, the central portion of the stabilization and current sensor or magnetic field.

摘要

The invention relates to a fiber optic measuring device in which the variation of a measured parameter causes a phase difference between two waves. It comprises a sagnac ring interferometer, (2) in which propagate two waves against - propagating; a separator (6) of polarization h spatially separates the two polarizations, which will propagate into the interferometer (2), the interferometer (2) comprises a fiber (7) birefringent polarisation conserving having two ends with neutral birefringence axes, each of the ends of the fiber (7) with conservation of polarization being connected to one of the doors (6b) and (6c) of the separator (6).