FIELD: measurement.
SUBSTANCE: invention relates to laser measuring equipment. Multimode fibre laser gyroscope includes an annular laser consisting of an optical amplifier, an annular resonator in form of a coiled in a light guide coil, a phase modulator using which a frequency base is created, and an X-type fibre splitter, two ports of which serve to output a portion of radiation power of the ring laser, a device for combining waves output from the ring laser, a photodetector and an electronic system. Gyroscope also has a spectral-selective narrow-band filter installed in the ring laser.
EFFECT: technical result is increased sensitivity of gyroscope.
9 cl, 5 dwg
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