Holding Company - NPO GOI named after S.Vavilova - improved the technology of growing a crystal made of yttrium aluminum garnet with the addition of vanadium. The novelty, which amplifies laser radiation in the wavelength range of 1.02-1.45 μm, is intended to create instruments in the field of ranging, target designation, surgery and material processing.


An innovative method of manufacturing has already been successfully tested in practice and will be launched into a serial production process in May 2018, told the press service of the holding.


“The new crystal must be grown in a special molybdenum container. At a temperature of 2000 degrees Celsius, particles of this metal react with vanadium. As a result, inclusions are formed in the future product that violate its integrity and lead to a significant loss of laser power. The addition of metallic chromium to the melt allowed our specialists to reduce the effect of molybdenum to values ​​that do not affect the optical quality of the crystal, ”explained Sergei Popov, first deputy general director of Shvabe.


The essence of the new technology is that instead of molybdenum, chromium enters into a chemical reaction with vanadium. Its inclusion in the grown crystal does not affect the performance of the product.


With the help of the new method, the experts of the GOI NGS them. SI Vavilov created an experimental batch of crystals with a diameter of up to 25 mm without various internal defects. The first samples of yttrium aluminum garnet with the addition of vanadium will be used to equip laser technology for ranging.

Produced at JSC "State Optical Institute named after S.Vavilov"