FIELD: optics.
SUBSTANCE: device is supplemented with source of A C magnetic field perpendicular to plane of magnetooptical material and main source is located in plane oriented along gradient of uniaxial anisotropy. Source of magnetic field perpendicular to surface of magnetooptical material comes in the form of clear current-carrying structures. One conductor of structure passes through center, second conductor runs along edge of aperture of light beam, perpendicular to gradient of uniaxial anisotropy.
EFFECT: variable body of information transmitted by light beam which enhances functional potential of holograms of optical vertex.
1 dwg
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