GAS LASER AND COHERENT RADIATION GENERATION PROCESS Russian patent published in 1996 - IPC

FIELD: quantum electronics; laser engineering; generation of high radiation power in all radiation ranges of laser using any gases, such as He-Ne, He-Kd, CO, CO₂, and the like found application in spectrometry, holography, and technology. SUBSTANCE: head wave energy is pumped into fundamental wave. This process involves radiation frequency control by return mirror 8 mounted on piezoceramic and having zero shift. This process occurs due to certain radiation frequency detuning on excited atoms that did not take part in fundamental wave generation earlier. Ring cavity has five mirrors. Two mirrors are inclined to optical axis in different directions at angle rad and one of them has two diametrically opposite windows in the form of nonevaporated sections. Two other mirrors, auxiliary piezoceramic-mounted one 7 and semi-transparent feedback mirror 6, are placed opposite each window at angle . Fifth return, mirror 8 is installed, in addition, perpendicular to optical axis of return beam. Discharge tube profile is slotted. Pumping return wave energy to fundamental wave enables entire inverse medium to scintillate into useful radiation resulting in considerable increase in laser efficiency. EFFECT: improved efficiency and output radiation power of gas lasers. 2 cl, 1 dwg