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Radiation hardening of pure silica optical fibers by high-pressure hydrogen treatment

 
: Henschel, H.; Köhn, O.; Weinand, U.

:
Postprint urn:nbn:de:0011-n-151673 (253 KByte PDF)
MD5 Fingerprint: 5853f18c86852a1a5e2174ae9c1d91c0
© 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Erstellt am: 25.9.2010


IEEE Transactions on Nuclear Science 49 (2002), Nr.3, S.1401-1409
ISSN: 0018-9499
European Conference on Radiation and its Effects on Components and Systems (RADECS) <6, 2001, Grenoble>
Englisch
Zeitschriftenaufsatz, Konferenzbeitrag, Elektronische Publikation
Fraunhofer INT ()
radiation hardening; pure silica optical fibers; high-pressure hydrogen treatment; low OH content; attenuation; OH absorption band growth

Abstract
It was proved that hydrogen (H/sub 2/) treatment, consisting of loading with H/sub 2/ under high pressure and immediate pre-irradiation up to dose values >or= 10/sup 4/ Gy considerably increases the radiation hardness of optical fibers with a pure SiO/sub 2/ core, especially of those with a low OH content. These fibers even show a reduction of their initial attenuation at wavelengths < 700 nm, in contrast to a significant increase between 1200 and 1600 nm (growth of OH absorption bands). Therefore, H/sub 2/ treatment should be restricted to fiber applications in the visible wavelength range, up to about 850 nm. A treatment with highly enriched deuterium should extend the usefulness to wavelengths around 1300 nm.

: http://publica.fraunhofer.de/dokumente/N-15167.html