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Experimental measurements of the spectral absorption coefficient of pure fused silica optical fibers.

Authors
  • Moore, Travis J
  • Jones, Matthew R
Type
Published Article
Journal
Applied Optics
Publisher
The Optical Society
Publication Date
Feb 20, 2015
Volume
54
Issue
6
Pages
1374–1378
Identifiers
DOI: 10.1364/AO.54.001374
PMID: 25968202
Source
Medline
License
Unknown

Abstract

Knowledge of the spectral absorption coefficient of fused silica optical fibers is important in modeling heat transfer in the processes and applications in which these fibers are used. An experimental method used to measure the spectral absorption coefficient of optical fibers is presented. Radiative energy from a blackbody radiator set at different temperatures is directed through the optical fibers and into an FTIR spectrometer. Spectral instrument response functions are calculated for different fiber lengths. The ratios of the slopes of the instrument response functions for the different lengths of fibers are used to solve for the spectral absorption coefficient of the fibers. The spectral absorption coefficient of low OH pure fused silica optical fibers is measured between the wavelengths 1.5 and 2.5 μm.

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