Reduction Of Water And Hydrogen Band In Chalcogenide Glass

Edward Hartouni; Jehmann Lee; Fred Huldermann

doi:10.1117/12.936211

8 November 1983 Reduction Of Water And Hydrogen Band In Chalcogenide Glass

Edward Hartouni, Jehmann Lee, Fred Huldermann

Proceedings Volume 0425, Single Mode Optical Fibers; (1983) https://doi.org/10.1117/12.936211
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

Procedural modification in making chalogenide glass and optical fibers has resulted in the reduction, and, in some cases, the elimination of water and hydrogen absorption bands. As a result of this new approach, transmission in the 2.5μm (4000 cm ^-1) to 7 μm (1428 cm^-1) region is improved by dB loss of two orders of magnitude. The methods are as fol-lows: 1. Elimination of hydrogen sulfide absorption bands from As2S3 glass by selectively doping the glass with a fraction of ppm As₂0₃ to act as a hydrogen getter. 2. Elimination of water absorption bands from As₂S₃ glass by baking out the quartz ampoule at 900°C under high vacuum and by using vacuum-distilled elemental powdered sulfur as a starting material. Sulfur is known to be fairly hygroscopic, especially in the powdered form. Thus, it is a potential source of H₂O contamination.

Citation Download Citation

Edward Hartouni, Jehmann Lee, and Fred Huldermann "Reduction Of Water And Hydrogen Band In Chalcogenide Glass", Proc. SPIE 0425, Single Mode Optical Fibers, (8 November 1983); https://doi.org/10.1117/12.936211

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