Title :
A new approach to the design of graded-index guided wave devices
Author :
Mills, Duncan W. ; Tamil, Lakshman S.
Author_Institution :
Erik Jonsson Sch. of Eng. & comput. Sci., Texas Univ., Richardson, TX, USA
fDate :
4/1/1991 12:00:00 AM
Abstract :
An inverse scattering approach to modeling single-mode gradient-index (GRIN) planar guided-wave devices is presented. The method involves solving the Gelfand-Levitan-Marchenko integral equation to obtain a refractive index profile which is infinite in extent. The theory is developed to account for truncations of this refractive index profile, illustrating the effects of a finite core width on the propagation constant. Refractive index profiles with symmetric and asymmetric cladding indexes are considered and discussed.<>
Keywords :
gradient index optics; integral equations; light scattering; optical waveguide components; optical waveguide theory; refractive index; GRIN; Gelfand-Levitan-Marchenko integral equation; asymmetric cladding indexes; finite core width; gradient-index; inverse scattering; modeling; planar guided-wave devices; propagation constant; refractive index profile; single-mode; symmetric cladding; Eigenvalues and eigenfunctions; Image reconstruction; Integral equations; Inverse problems; Optical reflection; Optical refraction; Optical scattering; Optical variables control; Propagation constant; Refractive index;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
