FIELD: laser gyroscopy.
SUBSTANCE: invention relates to the field of high-precision laser gyroscopy. The technical result is achieved by implementing a stable operating mode of the laser gyroscope at the operating point, which minimizes the first derivatives of the dependence of the sum of the frequency differences of counterpropagating waves of orthogonal circular polarizations on the magnetic field and the cavity perimeter length, creating a magnetic shielding in the coil of a magnetic field equal in magnitude and opposite in direction to the external magnetic field.
EFFECT: suppression of the influence of the magnetic field on the zero drift in Zeeman four-frequency and quasi-four-frequency laser gyroscopes.
1 cl, 7 dwg
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