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Effects Of Sintering Atmosphere On Defects In SiO2:GeO2 Vad Fiber

Published online by Cambridge University Press:  25 February 2011

A. Kashiwazaki ,
K. Muta ,
M. Kohketsu  and
H. Kawazoe
A. Kashiwazaki
Affiliation:
Optical Fiber Division, Showa Electric Wire & Cable Co., Ltd., Minamihashimoto, Sagamihara-shi 299
K. Muta
Affiliation:
Optical Fiber Division, Showa Electric Wire & Cable Co., Ltd., Minamihashimoto, Sagamihara-shi 299
M. Kohketsu
Affiliation:
Department of Inorganic Materials, Tokyo Institute of Technology, Ohokayama, Meguro- Ku, Tokyo 152, Japan
H. Kawazoe
Affiliation:
Department of Inorganic Materials, Tokyo Institute of Technology, Ohokayama, Meguro- Ku, Tokyo 152, Japan
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Abstract

Effects of the sintering atmosphere for 90SiO2 :10GeO2 preform-rods produced by VAD process were examined. The sintering atmosphere was changed from reducing to oxidizing, and the type and relative concentration of defects were estimated by photoluminescence, UV absorption and ESR absorption. Reducing condition accelerated the formation of defects, because these centers were considered to be the intermediate products of the thermal decomposition reaction of GeO2 which gives rise to reduction of Ge(IV) to Ge(II).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 88: Symposium P – Optical Fiber Materials and Properties , 1986 , 217
Copyright
Copyright © Materials Research Society 1987

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References

REFERENCES

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