LASER STABLE RESONATOR Russian patent published in 1996 - IPC

FIELD: quantum electronics. SUBSTANCE: resonator has two mirrors and members located inside the resonator. The first mirror is made in form of convex sphere with radius comparable with radius of the second concave mirror. Mutual disposition of the mirrors is close to concentric. Optical surfaces and disposition of members located inside the resonator also have configuration being close to concentric one. One of members located inside the resonator - Fabri-Perrot standard - is mounted in perpendicular to axis in zero order. Resonator may be used for lasers with low and average amplification of active matter. It also may be used at wide-aperture laser systems. EFFECT: improved angular and spectral characteristics of radiation. 3 dwg