Journal ArticleDOI
Mode dispersion of trapezoidal cross-section dielectric optical waveguides by the effective-index method
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TLDR
In this paper, the mode dispersion of dielectric optical waveguides is calculated by the effective index method and is compared with previously reported experimental and theoretical finite-element results for trapezoidal cross-section waveguide.Abstract:
The mode dispersion of dielectric optical waveguides is calculated by the effective-index method and is compared with previously reported experimental and theoretical finite-element results for trapezoidal cross-section waveguides. Agreement between experimental and predicted results is very good. This is significant because it means that stripe waveguides can be designed with specific modal propagation properties using the much simpler effective-index method even though the waveguide cross-section is not rectangular.read more
Citations
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Journal ArticleDOI
Finite Element Analysis Waveguides of Optical
TL;DR: In this article, a finite element program for the analysis of anisotropic optical waveguides is described and the appearance of spurious numerical modes, due to the fact that the functional is non-positive definite, is discussed and a possible solution to the problem is presented.
Journal ArticleDOI
Analysis of optical fibers by the effective-index method
TL;DR: The effective-index method for determining waveguide dispersion is derived from the scalar wave equation and applied to optical fibers of arbitrary cross-sectional shapes and results from analyzing circular, elliptical, and cusp-shaped fibers are used to illustrate the general features of the method.
Journal ArticleDOI
Millimeter-Wave (W-Band) Quartz Image Guide Gunn Oscillator
TL;DR: In this article, a dielectric image-guide Gunn oscillator using fused quartz as the guide material has been investigated at frequencies around 94 GHz, and a resonant disk and pin bias circuit was used to tune the oscillator to an output power of 5 mW at the oscillation frequency of 94.2 GHz.
Journal ArticleDOI
Design of Dielectric Ridge Waveguides for Millimeter-Wave Integrated Circuits
Taichi Wang,S.E. Schwarz +1 more
TL;DR: In this paper, the authors discuss the general problem of designing guides and couplers to obtain the desired characteristics, and find that with good compromise designs, typical coupling loss between waveguide and a small device is about 1.4 dB, exclusive of dielectric loss and ohmic loss in the coupler.
References
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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.
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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.
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Strip-loaded film waveguide
TL;DR: In this paper, a low-loss strip-loaded guides, consisting of 7059 glass film on fused quartz substrate with sputtered SiO 2 as the loading strip, have been investigated.
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Lithium niobate ridge waveguide modulator
TL;DR: In this paper, a narrow ridge was etched on an outdiffused LiNbO3 crystal to form a singlemode waveguide confining the beam in both transverse dimensions.
Journal ArticleDOI
Analysis of TEM modes in dielectric waveguides, by a variational method
TL;DR: In this article, a method of analysis of dielectric waveguides using a variational method is presented, which can be applied to dielectrics with any general permittivity distribution.