Inorganic Materials

, Volume 43, Issue 4, pp 441–447

High-purity As-S-Se and As-Se-Te glasses and optical fibers

  • M. F. Churbanov
  • V. S. Shiryaev
  • A. I. Suchkov
  • A. A. Pushkin
  • V. V. Gerasimenko
  • R. M. Shaposhnikov
  • E. M. Dianov
  • V. G. Plotnichenko
  • V. V. Koltashev
  • Yu. N. Pyrkov
  • J. Lucas
  • J. -L. Adam
Article

Abstract

We describe a procedure for the preparation of As-S-Se and As-Se-Te glasses with low contents of gas-forming impurities (hydrogen, oxygen, and carbon) via melting of extrapure-grade elements in an evacuated silica ampule and purification of the melt by chemical distillation. The impurity concentrations in the glasses thus prepared have been reduced to the following levels: hydrogen, <0.02; oxygen, 0.2; carbon, <0.02; silicon, <0.4 ppm by weight. Using the double-crucible method, we have fabricated glass fibers with various ratios of the core and cladding diameters (1: 25 to 9: 10), protected with a tetrafluoroethylene/1,1-difluoroethylene copolymer coating, which have an average bending strength of 0.5–1 GPa. The minimal optical losses are 150 dB/km at 6.6 μm in multimode As-Se-Te glass fibers and 60 dB/km at 4.8 μm in As-S-Se glass fibers. The effect of microinhomogeneities in the melt on the optical performance of arsenic sulfoselenide glass fibers fabricated by the double-crucible method is examined.

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Copyright information

© Pleiades Publishing, Inc. 2007

Authors and Affiliations

  • M. F. Churbanov
    • 1
  • V. S. Shiryaev
    • 1
  • A. I. Suchkov
    • 1
  • A. A. Pushkin
    • 1
  • V. V. Gerasimenko
    • 1
  • R. M. Shaposhnikov
    • 1
  • E. M. Dianov
    • 2
  • V. G. Plotnichenko
    • 2
  • V. V. Koltashev
    • 2
  • Yu. N. Pyrkov
    • 2
  • J. Lucas
    • 3
  • J. -L. Adam
    • 3
  1. 1.Institute of Chemistry of High-Purity SubstancesRussian Academy of SciencesNizhni NovgorodRussia
  2. 2.Fiber Optics Research Center, Prokhorov General Physics InstituteRussian Academy of SciencesMoscowRussia
  3. 3.Laboratoire Verres et Céramiques, UMR CNRS 6512Institut de Chimie de RennesRennes CedexFrance

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