Silicon Oxynitride Coatings To Reduce Mechanical Fatigue And Hydrogen Induced Optical Ageing In Silica Fibres

W. J. Duncan; K. J. Beales; D. M. Cooper; P. L. Dunn; M. Herman; J. D. Rush; G. R. Thomas

doi:10.1117/12.944916

15 October 1984 Silicon Oxynitride Coatings To Reduce Mechanical Fatigue And Hydrogen Induced Optical Ageing In Silica Fibres

W. J. Duncan, K. J. Beales, D. M. Cooper, P. L. Dunn, M. Herman, J. D. Rush, G. R. Thomas

Author Affiliations +

Proceedings Volume 0506, Fiber Optics in Adverse Environments II; (1984) https://doi.org/10.1117/12.944916
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

Monomode silica fibre has been coated during fibre pulling with silicon oxynitride ceramics using an on-line deposition process. The coatings have been tested for their ability to prevent the mechanical and optical ageing of fibre. The ceramic coated fibres are more fatigue resistant than silica having N values of over 100 compared with an N of 25 for silica. rrus ceramic coated fibre need only be proof tested at about half the level required for silica. While silica fibre saturates with hydrogen in 500 hours no hydrogen has been detected in a ceramic coated fibre stored in hydrogen for 1900 hours. This and other experiments at high temperature suggest that silicon oxynitride coatings can prevent the hydrogen content of fibre from reaching unacceptable levels.

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W. J. Duncan, K. J. Beales, D. M. Cooper, P. L. Dunn, M. Herman, J. D. Rush, and G. R. Thomas "Silicon Oxynitride Coatings To Reduce Mechanical Fatigue And Hydrogen Induced Optical Ageing In Silica Fibres", Proc. SPIE 0506, Fiber Optics in Adverse Environments II, (15 October 1984); https://doi.org/10.1117/12.944916

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