کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5442716 1510770 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of aluminum and tellurium tetrachloride addition on the loss of arsenic selenide optical fiber
ترجمه فارسی عنوان
اثر افزودن آلومینیوم و تلریم تترا کلرید بر روی از دست دادن فیبر نوری آرسنیک سلنید
کلمات کلیدی
فیبر نوری و کلاکوژناید مادون قرمز، فیبر نوری سلنیای آرسنیک،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Arsenic selenide glass optical fibers typically possess extrinsic absorption bands in the infrared wavelength regions associated with residual hydrogen and oxygen related impurities, despite using 6N purified elemental precursors. Consequently, special additives and refined processing steps are utilized in an attempt to reduce these and other impurities. We investigate the formation of particulate impurities during a purification process based on the addition of 0.1 wt% elemental aluminum (Al) and 0.2 wt% tellurium tetrachloride (TeCl4) during glass synthesis. It was found that during purification and melting steps, Al reacts with TeCl4 to form AlCl3, which in turn reacts with oxygen and hydrogen impurities and the fused quartz (SiO2) ampoule to produce HCl and stable submicron Al2SiO5 compounds in the As-Se glass and fibers. The intensity of the H-Se absorption band centered at 4.57 μm has been significantly reduced from 18 dB/m to 0.8 dB/m. Using thermodynamic data, we have identified stable Al2SiO5 submicron inclusions in the glass and fibers. A two-step gettering process is proposed as a solution to eliminating these inclusions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 64, February 2017, Pages 327-333
نویسندگان
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