FIELD: laser engineering; advanced lasers for fiber-optic communication lines, optoelectronics, and spectroscopy.
SUBSTANCE: proposed tungsten-tellurium glass based film material for lasers activated by Er3+ ions is made in the form of film and applied to molten crystal substrate in high-frequency magnetron spraying process. For spraying use is made of target incorporating TeO2, WO3, and ER2O3 oxides; target is sprayed onto substrate heated to 250 - 350 °C in argon-oxygen mixture environment, whereupon film obtained in the process is annealed in oxygen at 130 - 390 °C.
EFFECT: enhanced chemical stability, lifetime, and quantum yield of photoluminescence of film.
6 cl, 2 dwg, 1 tbl
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