Title

Thermal and Photo-Initiated Reactions of H₂ with Germanosilicate Optical Fibers

Document Type

Article

Department

Physics (HMC)

Publication Date

2-1994

Abstract

Raman spectroscopy was performed on the cores of germanosilicate optical fibers into which molecular hydrogen was diffused and subsequently treated with either heat or low-intensity ultraviolet light at 254 nm. The results indicate that distinctly different hydrogen addition reactions occur in these two cases. Thermally initiated reactions resulted in GeH and SiOH production. Ultraviolet-light-initiated reactions produced species characteristic of a local reaction occurring at the oxygen deficient ‘GeO’ defect. In this latter case, the reaction product was determined to be GeH2, with the notable absence of both SiOH and GeOH.

Rights Information

© 1994 Elsevier

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