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Radiation hardening of optical fibre links by photobleaching with light of shorter wavelength

: Henschel, H.; Köhn, O.; Schmidt, H.

Fulltext urn:nbn:de:0011-n-2733 (533 KByte PDF)
MD5 Fingerprint: 0cd67f820388c5fa68db72f0e1986c02
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Created on: 17.9.2011

Centre National d'Etudes Spatiales, Paris:
RADECS 95. Third European Conference on Radiation and its Effects on Components and Systems
Piscataway, NJ: IEEE, 1996 (IEEE Transactions on Nuclear Science 43,3)
ISBN: 0-7803-3093-5
European Conference on Radiation and its Effects on Components and Systems (RADECS) <3, 1995, Arcachon>
Conference Paper, Journal Article, Electronic Publication
Fraunhofer INT ()
gamma irradiation; optical fibres; photobleaching; radiation hardening; radiation induced loss; radiation sensitiviy

The influence of additionally injected short-wavelength photobleaching light on the radiation hardness of Ge-doped graded index fibres working at 1300 nm wavelength is investigated. Predictions are complicated by the fact that more efficient shortwave bleaching light experiences higher radiation-induced loss. Promising results are found for low fibre temperatures (< -50 deg C) and bleaching light of about 835 nm wavelength.