Method for push-pull drive of a laser gyrometer

The method involves detecting a frequency of a winking signal of a laser beam (4). A measurement of amplitude of the winking signal is activated when the frequency of the signal is lower than a predetermined threshold (17) corresponding to a blind zone of a gyrometer. The predetermined threshold is modulated according to amplitude of one of two fringe signals of an interference signal generated from the beam by an interferometer (11).