Chalcogenide glasses containing the elements: As, Si, Ge, Sb, and Se or Te have been prepared. A new technique of preparing the raw material and subsequently drawing fibers has been developed in order to avoid the forming of oxygen compounds. The fibers have been drawn from oxygen free raw material inside an Ar atmosphere glove box. The fibers drawn to date have a diameter of 50-500 μm and length of several meters. Preliminary attenuation measurements indicate that the attenuation is better than 0.1 dB/cm. By improving the preparation of materials and the drawing technique, we expect to reach a better transmission.
"Chalcogenide Infrared Glass Fibers", Proc. SPIE 0320, Advances in Infrared Fibers II, (17 December 1982); doi: 10.1117/12.933189; https://doi.org/10.1117/12.933189