Spatial distribution of 650-nm luminescence in UV-processed germanosilicate preforms

Broadband luminescence at ~650 nm obtained on excitation at 633 and 647.5 nm is shown to be markedly increased in a UV-processed germanosilicate preform. The luminescence profile across the core is found to follow that of the germanium concentration.

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Bibliographic Details
Published in:Optics letters 1994-08, Vol.19 (15), p.1119-1121
Main Authors: Canning, J, Sceats, M G
Format: Article
Language:English
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Summary:Broadband luminescence at ~650 nm obtained on excitation at 633 and 647.5 nm is shown to be markedly increased in a UV-processed germanosilicate preform. The luminescence profile across the core is found to follow that of the germanium concentration.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.19.001119