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Proceedings Paper

Light leakage in optical fibers: experimental results, modeling, and the consequences for remote lighting and solar concentrator systems
Author(s): Daniel Feuermann; Jeffrey M. Gordon; Mahmud Huleihal
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Paper Abstract

The optical performance of remote lighting systems and recent innovations in solar fiber-optic concentrators is acutely sensitive to transmission losses in their optical fibers. Typically, these multi-mode fibers are expected to incur small losses over long distances for broad-spectrum light sources. Experimental results reveal substantial light leakage within the nominal numerical aperture of optical fibers that have been deemed suitable for these applications. The same fibers exhibit negligible attenuation in their core. Of particular interest 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 laboratory measurements of fiber angular transmission, along with a theoretical model.

Paper Details

Date Published: 19 November 2001
PDF: 11 pages
Proc. SPIE 4446, Nonimaging Optics: Maximum Efficiency Light Transfer VI, (19 November 2001); doi: 10.1117/12.448831
Show Author Affiliations
Daniel Feuermann, Ben-Gurion Univ. of the Negev (Israel)
Jeffrey M. Gordon, Ben-Gurion Univ. of the Negev (Israel)
Mahmud Huleihal, Ben-Gurion Univ. of the Negev (Israel)

Published in SPIE Proceedings Vol. 4446:
Nonimaging Optics: Maximum Efficiency Light Transfer VI
Roland Winston, Editor(s)

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