TWO-DIMENSIONAL INTRACAVITY RADIATION SCANNING GAS LASER Russian patent published in 2013 - IPC H01S3/38 H01S3/34 

FIELD: physics.

SUBSTANCE: gas laser has a system for high-frequency excitation of the active medium with a scanning device, having two metal disc electrodes, one of which on the side of the interelectrode space is coated by a dielectric layer which current-conducting wedge-like metal tracks are deposited. The laser optical cavity is formed by two circular annular mirrors. On one half of the perimeter of the mirror, the coating provides partial reflection, and the other half of the surface of the circular annular mirror (3) is in form of an orthogonal array composed of n×m controlled mirrors (5), having a coating with a controlled reflection coefficient (6) such that the form of the common surface of the array repeats the form of half of the surface of the annular mirror which partially transmits radiation. There are additional actuating elements (19) in amount of n×m per controlled mirror of the array and an electronic switch (20) for elevation-angle deviation of output radiation which carries the deviation signal to the ij-th actuating element (19) for changing the reflection coefficient of the ij-th controlled mirror (1≤i≤m, 1≤j≤n) to a value closer to one.

EFFECT: enabling two-dimensional intracavity scanning of output laser radiation on the azimuth and elevation angle.

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