METHOD AND DEVICE FOR CONTROLLING LASER CAVITY Russian patent published in 2003 - IPC

FIELD: controlled optical engineering including laser engineering. SUBSTANCE: proposed method and device are intended for development of optical lenses of new generation and for real-time control of the latter, as well as for construction of controlled laser cavities of various types including those with controlled output radiation power including complete damping of oscillations on the one hand and partial rise of rated output power of laser on the other hand. In addition proposed method and device can be used to attain modulated Q-factor pulse-periodic oscillation mode and to raise output radiation power and peak intensity of various lasers. According to proposed method and device shape-changing mirror is made in the form of multilayer single-channel bimorph mirror; control voltage for shape-changing mirror is chosen within definite amplitude range; electronic control unit is connected to computer and/or electric signal generator, and/or feedback sensor/receiver, and curvature radius of original optical surface of shape-changing mirror is chosen from definite equation. EFFECT: enlarged control range of laser radiation power. 6 cl, 15 dwg