A simple mode of frequency tuning of the submillimeter laser

A simple method of frequency tuning control of the submillimeter laser within the limits of active substance emission band is presented. By this method one can make a tuning of submillimeter lasers with known central frequencies of active substance emission band and there is a possibility of unequivocal tuning at fixed emission line. The tuning is executed by means of the micrometric mechanism of resonator mirror displacement.