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Influence of manufacturing parameters and temperature on the radiation sensivity of fiber Bragg gratings

 
: Henschel, H.; Höffgen, S.; Kuhnhenn, J.; Weinand, U.

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Postprint urn:nbn:de:0011-n-1414838 (326 KByte PDF)
MD5 Fingerprint: ede77042c9425377886e7c252052230a
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Erstellt am: 9.10.2010


IEEE Transactions on Nuclear Science 57 (2010), Nr.4, Pt.1, S.2029-2034
ISSN: 0018-9499
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer INT ()
fiber Bragg grating; fiber tension; gamma radiation; grating temperature dependence; hydrogen loading; optical fiber sensor; radiation effect; recoating; type I grating

Abstract
For the first time the radiation sensitivity of Bragg gratings was investigated as a function of hydrogen loading pressure before and fiber tension during grating inscription, of the recoating procedure, and of the grating temperature. At -50°C the radiation-induced Bragg wavelength shift was about two times higher than at room temperature. This should be considered when selecting Bragg gratings e.g., for certain space applications.

: http://publica.fraunhofer.de/dokumente/N-141483.html