Fabrication of As-S and As-Se optical fiber with low hydrogen impurities using tellurium tetrachloride (TeCl<sub>4</sub>)

Vinh Q. Nguyen; Jasbinder Singh Sanghera; Brian J. Cole; Pablo C. Pureza; Frederic H. Kung; Ishwar D. Aggarwal

doi:10.1117/12.473172

19 June 2003 Fabrication of As-S and As-Se optical fiber with low hydrogen impurities using tellurium tetrachloride (TeC1₄)

Vinh Q. Nguyen, Jasbinder Singh Sanghera, Brian J. Cole, Pablo C. Pureza, Frederic H. Kung, Ishwar D. Aggarwal

Author Affiliations +

Proceedings Volume 4987, Integrated Optics: Devices, Materials, and Technologies VII; (2003) https://doi.org/10.1117/12.473172
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

Arsenic sulfide (As-S) and arsenic selenide (As-Se) 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 0.1 wt%tellurium tetrachloride (TeCl₄) to the glass. During melting, the chlorine from TeCl₄ 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 give low H-S (1.5 dB/m) and low H-Se (0.2 dB/m) impurity content.

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Vinh Q. Nguyen, Jasbinder Singh Sanghera, Brian J. Cole, Pablo C. Pureza, Frederic H. Kung, and Ishwar D. Aggarwal "Fabrication of As-S and As-Se optical fiber with low hydrogen impurities using tellurium tetrachloride (TeC1₄)", Proc. SPIE 4987, Integrated Optics: Devices, Materials, and Technologies VII, (19 June 2003); https://doi.org/10.1117/12.473172

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