LASER WITH RESONATOR Q-FACTOR MODULATION AND MODE SYNCHRONIZATION Russian patent published in 2017 - IPC H01S3/117 H01S3/81 

FIELD: optics.

SUBSTANCE: invention relates to laser equipment. Laser with modulation of q-factor and mode synchronization contains in first arm of optical resonator series-arranged first end mirror, acoustic-optical modulator, active element and first auxiliary mirror, and in other arm it contains second auxiliary and end mirrors, nonlinear element installed between them. Wherein modulator in different moments of time operates at two audio frequencies transmitted through additionally introduced electric signals adder from two additionally introduced generators of modulated oscillations synchronized by third generator, setting laser pulse repetition frequency selected in range of (0.1–100) kHz. Value of first audio frequency is determined by parameters of optical resonator to meet laser mode synchronization conditions, and second audio frequency, providing modulation of q-factor of resonator is selected in one and half times higher than first one. Light beam, coming from modulator after diffraction at second frequency, is overlapped by additional diaphragm.

EFFECT: technical result consists in opportunity to increase level of modulation.

1 cl, 5 dwg