Tellurium Halide Glasses, New Materials For I.R. Fibers

Jacques Lucas; Xiang Hua Zhang; Gilles Fonteneau

doi:10.1117/12.968206

1 January 1987 Tellurium Halide Glasses, New Materials For I.R. Fibers

Jacques Lucas, Xiang Hua Zhang, Gilles Fonteneau

Proceedings Volume 0843, Infrared Optical Materials and Fibers V; (1987) https://doi.org/10.1117/12.968206
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

A new class of I.R. transmitting glasses have been discovered in the binary systems Te-Cl and Te-Br and in the ternary systems Te-Cl-S, Te-Cl-Se, Te-Br-S, Te-Br-Se, Te-I-Se. The ternary glasses have a very high resistance towards devitrification. The glass temperature Tg is ranging from 50 to 80° C depending on the composition. The S or Cl containing glasses have their I.R. edge located in the 13 pm region while the compositions not containing those light elements have their multiphonon edge near 20 μm. A typical glass composition such as Te₃Br₂Se has a potential high transparency of about 10 dB/km at 10.6 μm estimated from band-gap and multiphonon absorption. Samples prepared from high purity compounds show no parasitic absorption bands due to OH, SH, and so on.

Citation Download Citation

Jacques Lucas, Xiang Hua Zhang, and Gilles Fonteneau "Tellurium Halide Glasses, New Materials For I.R. Fibers", Proc. SPIE 0843, Infrared Optical Materials and Fibers V, (1 January 1987); https://doi.org/10.1117/12.968206

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