Structural peculiarities of phosphate glasses for fiber optic applications

Anatolii Anan'ev; Viktor Bogdanov; Leonid Maksimov; Vyacheslav Rusan; Sergei Smerdin; Oleg Yanush

doi:10.1117/12.639054

12 June 2006 Structural peculiarities of phosphate glasses for fiber optic applications

Anatolii Anan'ev, Viktor Bogdanov, Leonid Maksimov, Vyacheslav Rusan, Sergei Smerdin, Oleg Yanush

Proceedings Volume 5946, Optical Materials and Applications; 594602 (2006) https://doi.org/10.1117/12.639054
Event: Optical Materials and Applications, 2005, Tartu, Estonia

Abstract

Alkali phosphate, phosphate-silicate, and phosphate-germanate glasses were studied by means of high-temperature acoustics and Rayleigh-Mandelstam-Brillouin (RMBS) and Raman scattering (RS) spectroscopies. Temperature-temporal dependences of the ultrasound velocity in the glass melts were measured at temperatures up to 1550°C. From the RMBS spectra the Landau-Placzek ratio and frequency shifts were found. A theory of the fluctuations fieezing at the cooling of the glass melt was applied to separate the contributions of the frozen-in density and concentration fluctuations to the Rayleigh scattering losses. A comparison was drawn with the losses in silica glass. The RS spectra allowed the identification of the constant-stoichiometry groups. The feasibility of the system xNa₂O-(40 - x)K₂0-30Al₂0₃-30P₂0₅ for the fabrication of low-scattering glasses was ascertained.

Citation Download Citation

Anatolii Anan'ev, Viktor Bogdanov, Leonid Maksimov, Vyacheslav Rusan, Sergei Smerdin, and Oleg Yanush "Structural peculiarities of phosphate glasses for fiber optic applications", Proc. SPIE 5946, Optical Materials and Applications, 594602 (12 June 2006); https://doi.org/10.1117/12.639054

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