Preparation and study of laser active elements based on yttrium oxide
Keywords:
nanopowder, optical ceramics, transmission spectra, lasingAbstract
The results of research on the creation of highly transparent active elements of solid-state lasers based on nanopowders synthesized in a laser plume are presented. It has been shown that the productivity of obtaining nanoparticles with an average size of 13 nm is 30 g/hour. Their size distribution range does not exceed 40 nm. Ceramic samples prepared from Yb:Y2O3 powders had a transmission at the lasing wavelength of ~82%, that is, close to theoretical. Pumping the synthesized samples at a wavelength of λ = 929 nm made it possible to obtain lasing at λ = 1073 nm with a power of ~8 W with a record optical efficiency of 69,3% with a differential efficiency of 74,5%.
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