DEVICE FOR AUTOMATIC ADJUSTMENT OF LASER WITH UNSTABLE RESONANCE Russian patent published in 2006 - IPC H01S3/86 

FIELD: quantum electronics, possible use for engineering powerful impulse-periodic action lasers.

SUBSTANCE: device contains solid and semi-transparent mirrors of unstable resonator, adjusting laser, two pairs of photo-receivers, adjusting assemblies for angular movements of solid mirror, block for forming control signal, proportional to value of misalignment of resonator and block for protecting adjusting laser and photo-receivers from effect of main emission. Protection block is made in form of at least four curtains, mounted in front of aperture of photo-receivers and evenly positioned along circle of toothed wheel with internal engagement, and four curtains, positioned analogically in front of aperture of adjusting laser, mounted along the circle of gear with number of teeth four times less than number of teeth on the wheel. Gear is kinematically connected to wheel and shaft of electric engine.

EFFECT: increased reliability of protection of adjustment laser and photo-receivers from effect of main laser emission.

4 dwg