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Hello All! Institute of Automation and Electrometry SB RAS. Optical laboratory information systems. (www.l23.iae.nsk.su) Mastering laser technologies for recording information in volumetric recording media (3-D technology) is the most promising path for further development and improving optical memory. The Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences has developed a two-beam laser microtechnology for recording digital information in many layers of volumetric photosensitive environment; it is based on the localization of a volumetric microlattice (“pit”) during recording and heterodyne multilevel phase-sensitive selection this structure when reading information. The technology simultaneously provides such high data packing densities and read-write speeds that are physically inaccessible to others, competing methods of recording information. Information is recorded in photosensitive media with a thickness of about 100 microns in 8 - 10 information layers separated by depth, which corresponds to volumetric density 10 MB/mm3. Further increasing the number of recording layers by another order will occur through the use of new threshold volumetric media, in particular with the mechanism of two-photon absorption. Increasing registration speed to 256 Mbit/s without significant increasecarrier speed was obtained by introducing additional high-speed scanning of the laser beam along the radius of the disk. The sweep is carried out from using a running acousto-optical lens, the high characteristics of which (scan speed, light efficiency) are ensured by introducing escort deflector. The main physical and technical solutions used in the development of the technology protected by copyright certificates A.S. No. 1349547, No. 1457663, No. 1769233 and RU patent No. 2017237. The technology is focused on solving problems of recording information in promising high-speed digital television systems, fiber-optic communications, space telemetry and radar, as well as in modern supercomputer data processing systems and other applications. Best regards, George