OPTICAL DEVICE OF LASER RESONATOR (VERSIONS) Russian patent published in 2009 - IPC G02B5/18 H01S3/10 

FIELD: physics, optics.

SUBSTANCE: optical device of the laser resonator consisting of a plate of an optical material with a blanket, executed in the form of a diffraction grating with accents in the form of sequence of dimples or the blanket salients, differing that area S_xy of dimple or salient in the field of a blanket with in co-ordinates X and Y is spotted from expression where T - a continuance of following of dimples or salients, G₁ - reflectivity or blanket gear transmissions, G₂ - a reflectivity or gear transmissions of blanket in the field of dimple or salient, G (x, y) - demanded function of change of reflectivity or a gear transmission of an optical device of the laser resonator along co-ordinates X and Y.

EFFECT: obtaining of device with high coefficient of reflexion/transmission with any way given law of the change providing an apodisation of laser bundles in a wide spectroscopic range with high beam firmness.

6 cl, 5 dwg