Specific features of Er3+ ion photoluminescence in silicate glasses produced by plasma chemical deposition in UHF discharge at reduced pressure

One investigated into luminescent properties of Er3+ ions in SiO2 base glass matrices with F, N, K, Al, P, Ge, P and K, Ge and Al additions. Glass specimens with 9x1020 cm-3 erbium concentration were synthesized by plasma chemical gaseous deposition. One obtained spectra, kinetics and relative quantum efficiency of Er3+ photoluminescence at excitation by Ar+ laser emission at 514.5 nm wavelength. The luminescent properties of activator in the mentioned non-melted glasses with high erbium content are shown to be compared favorably with the properties of activator in similar glasses exposed to melting. The effect is linked with suppression of clustering in glasses at low-temperature gaseous deposition occurring due to the restricted mutual solubility of oxides in melts. One obtained high-efficient composite materials with up to 4x1020 cm-3 erbium concentration that may serve as an active medium to produce waveguide lasers and amplifiers