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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S2 — Mar. 10, 2014
  • pp: A198–A204

Design of a lens-to-channel waveguide system as a solar concentrator structure

Yuxiao Liu, Ran Huang, and Christi K. Madsen  »View Author Affiliations

Optics Express, Vol. 22, Issue S2, pp. A198-A204 (2014)

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We present a lens-to-channel waveguide solar concentrator, where the lens array and the channel waveguide act as the primary and the secondary concentrator. Sunlight collected by the lens array is coupled into channel waveguides and exits from one end of the tapered waveguide directly onto photovoltaic cells. A 45° coupler is placed at each lens focal point to couple light into the waveguides. This configuration eliminates any inherent decoupling losses. We provide a detailed math model and simulation results using exemplar system parameters, showing that this structure can achieve 800x concentration at 89.1% optical efficiency under ±0.7° incidence angle.

© 2014 Optical Society of America

OCIS Codes
(220.1770) Optical design and fabrication : Concentrators
(230.7380) Optical devices : Waveguides, channeled
(350.6050) Other areas of optics : Solar energy
(080.2175) Geometric optics : Etendue

ToC Category:
Waveguide Concentrators

Original Manuscript: December 2, 2013
Revised Manuscript: January 5, 2014
Manuscript Accepted: January 6, 2014
Published: January 15, 2014

Virtual Issues
Renewable Energy and the Environment (2014) Optics Express

Yuxiao Liu, Ran Huang, and Christi K. Madsen, "Design of a lens-to-channel waveguide system as a solar concentrator structure," Opt. Express 22, A198-A204 (2014)

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