Design optimizations for a lens-to-channel waveguide solar concentrator

Abstract

Design optimizations for the previously proposed lens-to-channel waveguide concentrator is discussed. Using integrated tapered waveguides, up to 900× geometric concentration can be achieved without separate secondary optics under ideal conditions. A 600× practical system is built in Zemax and simulated using a Fresnel lens array, showing less than 1% structural loss and angular response over 0.6 degrees.