Title :
TE and TM coupling coefficients for index-gain multigrating waveguides
Author :
Debernardi, P. ; Montrosset, I.
Author_Institution :
Politecnico di Torino, Italy
fDate :
4/1/1992 12:00:00 AM
Abstract :
The coupling coefficients of dielectric optical waveguides with more than one grating and with a periodic perturbation of the loss and gain are calculated for TE and TM modes. Analytical expressions for the coupling coefficient are given for the case of an asymmetric trapezoidal-like grating profile. Results obtained using various approximations of the unperturbed waveguide are presented and compared
Keywords :
diffraction gratings; optical constants; optical losses; optical waveguide theory; refractive index; TE coupling coefficients; TM coupling coefficients; asymmetric trapezoidal-like grating profile; dielectric optical waveguides; gain; index-gain multigrating waveguides; loss; periodic perturbation; unperturbed waveguide;
Journal_Title :
Optoelectronics, IEE Proceedings J
