Abstract: The invention relates to magneto-optical structures applicable in systems for optical processing of information, in sensors and converters of magnetic field. The technical result is comprised in increase of resolution and sensitivity, ensuring high value of Faraday rotation of polarized light and high speed of operation when pulses of external magnetic field are applied.

Abstract: The invention relates to the devices for reading the information from magnetic carriers of recording, more detailed, to magneto-optical heads for reproducing the information. The technical result is substantiated in higher resolution, increase of ratio of useful signal to noise, simplification of construction and manufacturing process of the head, extending the service life. Magneto-optical head for reproducing of information consists of underlay 2 made of material characterized by high transparency in the spectral range of the source of the reading polarized light, for example, from a mono-crystalline gadolinium-gallium garnet. On the side of the underlay 2, that is turned towards magnetic medium 4 with the stored information, a magneto-optical transducer 3 is placed in form of a ferrite-garnet film, on the free side of which a reflective mirror layer 6 can be deposited.