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Fabrication of Arsenic Sulfide Optical Fiber with Low Hydrogen Impurities
Author(s) -
Nguyen Vinh Q.,
Sanghera Jas S.,
Cole Brian,
Pureza Pablo,
Kung Frederic H.,
Aggarwal Ishwar D.
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00403.x
Subject(s) - impurity , hydrogen sulfide , arsenic , fiber , sulfide , hydrogen , inorganic chemistry , materials science , optical fiber , absorption (acoustics) , chemistry , analytical chemistry (journal) , sulfur , metallurgy , organic chemistry , optics , composite material , physics
Arsenic sulfide glass optical fibers typically possess extrinsic absorption bands in the infrared wavelength region associated with residual hydrogen and oxygen related impurities, despite using purified precursors. We report a purification process based on the addition of tellurium tetrachloride (TeCl 4 ) to the glass. During melting, the chlorine from TeCl 4 reacts with the hydrogen impurities to produce volatile products (e.g., HCl) that can be removed by subsequent dynamic distillation. The processing conditions have been modified accordingly to produce optical fibers with significantly reduced loss due to hydrogen sulfide impurity content (1.5 dB/m).