Abstract
This paper lists the requirements imposed by the designers of powerful
high-energy lasers and radiation amplifiers on KGSS 0180 phosphate glasses with
various neodymium concentrations, used to manufacture large disk- and rod-shaped
active elements. The classical two-stage technology for melting them is
described, and a quantitative characterization is given of the extent to which
structural water and the neodymium concentration in the glasses affect the
maximum achievable luminescence time and quantum yield. A description is given
of why inactive absorption of radiation appears at the lasing wavelength and a
method for reducing it in the resulting glasses. A method is indicated for
reducing the number of inclusions of metallic platinum in the glass, which
affect its radiation strength.
© 2013 Optical Society of America
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