Journal ArticleDOI
Modes in 2-D buried optical waveguide with asymmetric graded refractive index profile.
TLDR
A convenient refractive index profile, which is based on the Morse potential function and is similar to that which is observed in practically fabricated optical waveguides, is introduced in order to study the propagation characteristics of the 2-D buried optical waveguide.Abstract:
A dielectric waveguide, whose guiding region is located beneath the substrate surface, will be a useful configuration to connect optical functional devices fabricated in the same substrate. A convenient refractive index profile, which is based on the Morse potential function and is similar to that which is observed in practically fabricated optical waveguides, is introduced in order to study the propagation characteristics of the 2-D buried optical waveguide.read more
Citations
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Finite-element solution of planar arbitrarily anisotropic diffused optical waveguides
TL;DR: In this article, a finite-element method for propagation in planar anisotropic diffused optical waveguides with arbitrary permittivity tensor is presented, and a Galerkin procedure has been introduced to the finite element formulation, to study both the nonleaky and leaky surface waves.
Journal ArticleDOI
Analytic solution to field distribution in one-dimensional inhomogeneous media
TL;DR: In this paper, a general expression of a solution to the Maxwell equation for a 1-dimensional inhomogeneous medium is presented. But it does not require integration of either the differential wave equation or the refractive index profile, as is the case with other methods.
Journal ArticleDOI
Optical field calculation of impurity diffused channel waveguides by linear segment layer approximation
Juichi Noda,Masaharu Fukuma +1 more
TL;DR: A mode analysis based on linear segment layer approximation is demonstrated for arbitrarily graded-index waveguides, and optical intensity distributions in a 3-D diffused waveguide are demonstrated using the effective-index method.
Journal ArticleDOI
Analytic solution to field distribution in two-dimensional inhomogeneous waveguides
TL;DR: In this article, a theoretical approach for analytically solving wave propagation through two-dimensional (2D) inhomogeneous slab waveguides is presented, and the results show significant potential for use in various applications.
Journal ArticleDOI
Modes in buried planar optical waveguides with graded-index profiles
TL;DR: In this article, the exact propagation characteristics of buried graded-index planar optical waveguides fabricated by ion migration were obtained by using a buried secant hyperbolic function.
References
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Journal ArticleDOI
Diatomic Molecules According to the Wave Mechanics. II. Vibrational Levels
TL;DR: In this paper, an exact solution for the Schroedinger equation representing the motions of the nuclei in a diatomic molecule, when the potential energy function is assumed to be of a form similar to those required by Heitler and London and others, was obtained.
Journal ArticleDOI
Optical waveguide formed by electrically induced migration of ions in glass plates
Tatsuo Izawa,Hiroshi Nakagome +1 more
TL;DR: In this paper, a low-loss waveguide for integrated optical devices is described. But the guiding region is located beneath the substrate glass and the transmission loss of the waveguides is estimated to be less than 0.1 dB/cm.
Journal ArticleDOI
Optical waveguides formed by thermal migration of ions in glass.
TL;DR: The ion-exchange process has proved to be a simple means for fabricating tapered-edge couplers and low loss films can be fabricated using this process and the modal losses in these films do not agree with those losses predicted by existing theories.
Journal ArticleDOI
Light propagation in generalized lens-like media
TL;DR: In this article, the paraxial ray equation for non-square-law media has been studied and an approximate solution for the transverse beam width, phase constant, and ray trajectory has been given.
Journal ArticleDOI
Fabrication of optical waveguiding layer in LiTaO3 by Cu diffusion
TL;DR: In this paper, a single-mode waveguiding layer has been fabricated using the electrodiffusion method for thermal diffusion and electrodifusion of Cu into LiTaO3.