학술논문
A new approach to the design of graded-index guided wave devices
Document Type
Periodical
Author
Source
IEEE Microwave and Guided Wave Letters IEEE Microw. Guid. Wave Lett. Microwave and Guided Wave Letters, IEEE. 1(4):87-89 Apr, 1991
Subject
Language
ISSN
1051-8207
1558-2329
1558-2329
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.ETX