Comparison of some fiber optic configurations for measurement of luminescence and Raman scattering

Measurements are made for a number of dual fiber optic configurations to determine their relative sensitivity using bare fibers and graded-refractive-index lenses. An analysis of the background fiber emission for a typical silica-on-silica fiber (Diaguide, 200-microm core) is presented, and the orig...

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Bibliographic Details
Published in:Applied optics (2004) 1990-03, Vol.29 (9), p.1333-1344
Main Authors: Myrick, M L, Angel, S M, Desiderio, R
Format: Article
Language:English
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Summary:Measurements are made for a number of dual fiber optic configurations to determine their relative sensitivity using bare fibers and graded-refractive-index lenses. An analysis of the background fiber emission for a typical silica-on-silica fiber (Diaguide, 200-microm core) is presented, and the origin (core or cladding) for several prominent Raman peaks is determined. Also, a forward-scattering fiber geometry is introduced, and the dependence of sensitivity on the type of optical termination and fiber separation is determined.
ISSN:1559-128X
DOI:10.1364/AO.29.001333