We present a novel matrix method that allows the straightforward determination of exact propagation constants as well as the field configuration in the region that is beyond the turning point at the substrate side for arbitrarily graded-index planar waveguides.
© 1999 Optical Society of America
(130.2790) Integrated optics : Guided waves
(230.7390) Optical devices : Waveguides, planar
(260.2030) Physical optics : Dispersion
(290.3030) Scattering : Index measurements
(350.5500) Other areas of optics : Propagation
Zhuangqi Cao, Yi Jiang, Qishun Shen, Xiaoming Dou, and Yingli Chen, "Exact analytical method for planar optical waveguides with arbitrary index profile," J. Opt. Soc. Am. A 16, 2209-2212 (1999)