Light leakage in optical fibers: Experimental results, modeling and the consequences for solar concentrators

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Abstract

Optical fibers used to transport sunlight exhibit considerable light leakage within their nominal numerical aperture. Of particular interest in the design and diagnosis of solar fiber-optic concentrators is the dependence of this leakage on: (a) incidence angle, (b) the optical properties of the core and the cladding, and (c) fiber length. We present measurements of fiber angular transmission, along with a theoretical model. The implications for solar fiber-optic concentrators are also assessed.

Original languageEnglish
Pages (from-to)195-204
Number of pages10
JournalSolar Energy
Volume72
Issue number3
DOIs
StatePublished - 11 Mar 2002

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