C. Bao et al., GRADIENT-INDEX TAPERED HYPERBOLIC SECANT PLANAR WAVE-GUIDE FOR FOCUSING, COLLIMATION, AND BEAM-SIZE CONTROL, Journal of the Optical Society of America. A, Optics, image science,and vision., 14(8), 1997, pp. 1754-1759
An analysis of Light transmission through a tapered hyperbolic secant
waveguide is presented. collimation conditions by this waveguide are o
btained. The design of a beam-size controller device is proposed and c
ompared with a similar device designed with nontapered hyperbolic seca
nt waveguides. (C) 1997 Optical Society of America.