کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5440999 1510371 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of the drawing region in the production of Ge-S-I optical fibers for infrared applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Investigation of the drawing region in the production of Ge-S-I optical fibers for infrared applications
چکیده انگلیسی
In the present work, series of Ge-S-I glass samples with 5, 10 and 15% of iodine and a concentration of germanium varying between 25 and 35% were prepared and their physical properties such as Tg, density, Visible and infrared light absorption were investigated. From the analysis of the properties close to the stoichiometric composition (GeS2)xI100-x, we propose an equation of composition that takes into account the effect of iodine as a structure modifier. A great change is observed in the band-gap and Tg values, both of which follow the (GeS2)X-(GeI4)1-X composition line. We report for the first time a study of the drawing ability of these glasses using a preform-to-fiber drawing technique, to obtain fibers with wide composition range. The results allow us to define a fiber drawing domain inside the glass forming region. We demonstrate that the fiber drawing region is located between two composition lines for which the Mean Coordination Number (MCN) values are 2.4 and 2.55. Attenuation losses measured at 1310 nm for some selected fibers range between 10.9 and 23.0 dB/m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 476, 15 November 2017, Pages 137-143
نویسندگان
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