Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-19T08:17:59.961Z Has data issue: false hasContentIssue false

Control of Radiation Induced Defects of Pure Silica Fiber Prepared by VAD Process

Published online by Cambridge University Press:  25 February 2011

K. Muta
Affiliation:
Showa Electric Wire & Cable Co., Ltd., Minamihashimoto, Sagamihara-shi 229
A. Kashiwazaki
Affiliation:
Showa Electric Wire & Cable Co., Ltd., Minamihashimoto, Sagamihara-shi 229
M. Kohketsu
Affiliation:
Department of Inorganic Materials, Tokyo Institute of Technology, Ohkayama, Meguro-ku, Tokyo 152 Japan
H. Kawazoe
Affiliation:
Department of Inorganic Materials, Tokyo Institute of Technology, Ohkayama, Meguro-ku, Tokyo 152 Japan
Get access

Abstract

The γ-induced centers in SiO2 glass such as the Si-E' center and OHC were found to be effected by the atmosphere present during melting. In the case of the VAD process, a porous preform rod is sintered to fabricate a transparent preform rod. The generation of defect species could be easily controlled by controlling the atmosphere of the sintering process. Only small amounts of OHC are generated in fibers sintered in Cl2 or H2 atmospheres, and most of the OHC is recovered at room temperature. This indicates the possibility of making fibers which are highly resistant to irradiation. The correlation between the γ-induced loss increase and the formation of these defects was examined.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Friebele, E. J. et al., 4th Europ. Conf. Opt. Comm., 80 (1978).Google Scholar
2. Friebele, E. J. et al., J. Lightwave Tech. LT–1, 462 (1983).Google Scholar
3. Griscom, D. L., Solid State Comm. 11, 899 (1972).CrossRefGoogle Scholar
4. Stapelbroek, M. et al., J. Non-Cryst Solids 32, 313 (1979).Google Scholar
5. Nelson, C. M.et al., J. Am. Ceram. Soc. 43, 396 (1960).Google Scholar
6. Friebele, E. J. and Griscom, D. L., Radiation Effects in Glass (Academic Press Inc., 306 (1979).Google Scholar