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GLASSES OF TeO2 – WO3 AND TeO2 – WO3 – La2O3 SYSTEMS FOR FIBER OPTICS

M. F. Churbanov1,* , G. E. Snopatin1, E. V. Zorin1, S. V. Smetanin1, E. M. Dianov2, V. G. Plotnichenko2, V. V. Koltashev2, E. B. Kryukova2, I. A. Grishin3, G. G. Butsin3

Affiliation

  1. Institute of Chemistry of High-Purity Substances of RAS, 49 Tropinin Str, 603950, Nizhny Novgorod, GSP-75, Russia
  2. Fiber Optics Research Center at the A. M. Prokhorov General Physics Institute of RAS, 38 Vavilov Str, 119991, Moscow, Russia
  3. Nizhni Novgorod State University, 23 Gagarin Ave., Nizhny Novgorod, Russia

Abstract

Tellurite glasses of (TeO2)0.8(WO3)0.2 and (TeO2)0.7(WO3)0.2(La2O3)0.1 are produced by melt ing mixtures of respective oxides. Some properties of produced glasses essential for applica tion in fiber optics are investigated. The best glass samples contain 0.5 – 1.0 ppm of OH groups, no more than 0.5 ppm wt. of transition metal impurities, less than 5·103 cm-3 of het erophase scattering inclusions with a diameter 0.05-0.09 mm. The kinetics of glass crystalli zation is studied within 380-4800C. A set of properties of glasses with the aforesaid compo sitions makes them applicable for optical fiber production, as is proved by experiments with fiber drawing from (TeO2)0.8(WO3)0.2 glass by double crucible method..

Keywords

Tellurite glasses, Purity, Microhomogeneity, Optical properties.

Submitted at: July 4, 2005
Accepted at: July 21, 2005

Citation

M. F. Churbanov, G. E. Snopatin, E. V. Zorin, S. V. Smetanin, E. M. Dianov, V. G. Plotnichenko, V. V. Koltashev, E. B. Kryukova, I. A. Grishin, G. G. Butsin, GLASSES OF TeO2 – WO3 AND TeO2 – WO3 – La2O3 SYSTEMS FOR FIBER OPTICS, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 4, pp. 1765-1772 (2005)