Abstract: A gyrolaser comprises: a ring-shaped optical cavity and a gaseous medium, and at least three electrodes in contact with the gas of the amplification medium, the electrodes generating charges when ignition voltage is applied; the cavity and distribution of the electrodes comprising at least one plane of symmetry perpendicular to the plane of the cavity and passing through the electrode of first type; at least one conductive ignition element set at a predetermined potential, the shape and arrangement being such that symmetry is maintained; the electrically conductive element generating an electric field locally for guiding the charges so they are distributed symmetrically in a first flow and second flow in the first and second discharge areas respectively when the ignition voltage is applied, in such a way that a first plasma and a second plasma are initiated simultaneously, respectively, in the first discharge area and in the second discharge area.

Abstract: The present invention relates to a laser gyro of the type comprising an optical block comprising three communicating resonant optical cavities which form a regular octahedron having eight triangular sides, each of the cavities presenting four capillary segments forming a square perpendicular to a corresponding sensitive axis, these cavities being arranged so that each of the angles of one cavity coincides and communicates with the angle of another cavity, a mirror associated with each pair of coinciding angles being oriented so as to be used by the two cavities forming said pair, each cavity using four mirrors including a reading mirror and a cavity-length servo mirror, said gyro also comprising an activation mechanism for driving the block according to a reciprocating rotation movement about an activation axis, and it is characterized in that this gyro comprises three cathodes each linked to two cavities out of the three, these two cavities being each time taken by circular permutation.

Abstract: The present invention relates to a laser gyro of the type comprising an optical block comprising three communicating resonant optical cavities which form a regular octahedron having eight triangular sides, each of the cavities presenting four capillary segments forming a square perpendicular to a corresponding sensitive axis, these cavities being arranged so that each of the angles of one cavity coincides and communicates with the angle of another cavity, a mirror associated with each pair of coinciding angles being oriented so as to be used by the two cavities forming said pair, each cavity using four mirrors including a reading mirror and a cavity-length servo mirror, said gyro also comprising an activation mechanism for driving the block according to a reciprocating rotation movement about an activation axis, and it is characterized in that this gyro comprises three cathodes each linked to two cavities out of the three, these two cavities being each time taken by circular permutation.