Active fibre for two-waved fiber laser

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The invention relates to laser fiber technology. Active fibre for two-waved fiber laser includes inner and outer shell and core, consisting of ordered structure. Said structure represents a thread - waveguides, doped with ions of rare-earth elements of different composition, located in the inner shell, serving as waveguide for pumping radiation, and providing possibility generating radiation at two wavelengths simultaneously in one structure. Effect consists in provision of possibility reduce overall dimensions and simplified circuit for generation of two-waved studying. 1 dwg.