PASSIVE GATE FOR MODULATING Q-FACTOR OF LASER CAVITY Russian patent published in 1994 - IPC

FIELD: quantum electronics. SUBSTANCE: laser cavity has telescope and saturating filter located in close proximity of laser with maximum beam aperture that affords generation of radiation pulse train during active element pumping and in addition it accommodates second saturating filter made of same material as first saturating filter; it is mounted in holder for parallel displacement along cavity axis in respect to initial position; second filter is located in cavity region with expanding beam aperture so that beam aperture area on filter surface and filter thickness are interrelated by equation given in description of invention. EFFECT: improved energy and peak power of laser radiation in monopulse generation mode. 1 dwg