Journal ArticleDOI
Single-mode optical waveguides and directional couplers with rectangular cross section: a simple and accurate method of analysis
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TLDR
In this article, a new method for obtaining the propagation characteristics of single-mode optical waveguides with rectangular cross section is presented, which is based on the scalar variational principle using the cosineexponential trial field.Abstract:
A new method for obtaining the propagation characteristics of single-mode optical waveguides with rectangular cross section is presented. The method is based on the scalar variational principle using the cosine-exponential trial field. This form of trial field leads to the definition of equivalent guiding structures consisting of homogeneous slab waveguides, which are then used to obtain, in a very simple way, the vector modes of a rectangular waveguide and the coupling characteristics of directional couplers consisting of two rectangular waveguides. The authors have also included the results of some representative calculations along with the results obtained using other approximate methods and the exact numerical method. A comparison shows that the method is much more accurate than the existing approximate methods, particularly in the region of single-mode operation. >read more
Citations
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Journal ArticleDOI
A Variational Method to Solve Waveguide Problems by Employing Dynamic Programming Technique
Yan Ju Chiang,Likarn Wang +1 more
TL;DR: The proposed variational method is applied to investigate the modal properties of the conductor-gap-silicon plasmonic waveguide and shows that the results of the convergence tests show that the proposed method is at least an order of magnitude faster than the conventional finite-difference beam propagation method.
Journal ArticleDOI
Design of an integrated optic comb filter based on coupling between dissimilar waveguides
TL;DR: In this article, the authors describe an integrated optic comb filter consisting of two single-mode guides placed symmetrically about a central multimode guide to give both a channel drop and a channel pass response.
Journal ArticleDOI
Application of the variational-moment method to symmetric and nonsymmetric waveguides.
Yoav Boim,Amos A. Hardy +1 more
TL;DR: The variational-moment method is used to demonstrate the calculation of propagation constants for optical waveguides with arbitrary index profiles, and good agreement with the exact numerical solutions is obtained in most cases, even for the nonsymmetric waveguide.
Journal ArticleDOI
Acousto-optic interactions in silica waveguide Bragg devices
TL;DR: In this paper, the authors analyzed the efficiency of acousto-optic interaction in singlemode strip silica waveguide by determining the overlap integral between the optical and acoustic field distributions.
References
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Journal ArticleDOI
Dielectric rectangular waveguide and directional coupler for integrated optics
TL;DR: In this paper, the authors studied the transmission properties of a guide consisting of a dielectric rod with rectangular cross section, surrounded by several dielectrics of smaller refractive indices.
Journal ArticleDOI
A circular-harmonic computer analysis of rectangular dielectric waveguides
TL;DR: In this article, a computer analysis of the propagating modes of a rectangular dielectric waveguide is presented, based on an expansion of the electromagnetic field in terms of a series of circular harmonics multiplied by trigonometric functions.
Book ChapterDOI
Theory of Dielectric Waveguides
TL;DR: In this article, the theory of dielectric waveguides is discussed and a discussion of the fabrication of planar waveguide structures is presented, even though most of the fundamentals are applicable to all waveguide types.
Journal ArticleDOI
Mode dispersion in diffused channel waveguides by the effective index method
G B Hocker,William K. Burns +1 more
TL;DR: The effective index method for calculating waveguide mode dispersion is reviewed and applied to uniform rectangular optical waveguides with both small and large index differences and is shown to be at least as accurate as other approximate techniques.