Common mirror triaxial ring laser gyroscope having a single internal cathode

Abstract From the Canadian patent

A compact three axis ring laser gyroscope having six laser corner mirrors which are positioned on the faces of a parallelopiped laser block, and method for making. Preferably the laser block is a cube. The laser block has a plurality of conduits therein for defining a plurality of closed laser beam-paths for guiding counterpropagating laser waves. Each laser beam-path has a gain medium therein and is formed to define a sensing axis for detection of rotations of the laser block. A single cathode is positioned inside the laser block preferably substantially at its geometric center and a plurality of, anodes are mounted to the laser block and spaced apart from the cathode. A ion flow path is …