Journal ArticleDOI
Slab-coupled waveguides
TLDR
The slab-coupled waveguide is a multidielectric waveguide that includes such special cases as the single-material fiber, the rib waveguide, and the strip-loaded film guide as mentioned in this paper.Abstract:
The slab-coupled waveguide, consisting of a dielectric rod lying on a slab that in turn covers a substrate, is a multidielectric waveguide that includes such special cases as the single-material fiber, the rib waveguide, and the strip-loaded film guide. These guides have recently become known as potentially useful either for long-distance optical transmission or for integrated optics. Simple, closed-form, approximate solutions have been found to describe the following properties of the guide: number of modes, their field configurations and propagation constants, numerical aperture, requirements for single-mode operation, field penetration in the slab, tolerance to curvature of the guide axis, dispersion, and impulse response.read more
Citations
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Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
TL;DR: In this article, the authors demonstrate experimentally that air-silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths, and exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared.
Journal ArticleDOI
Large single-mode rib waveguides in GeSi-Si and Si-on-SiO/sub 2/
TL;DR: In this article, mode-matching and beam-propagation methods are used to analyze single-mode operation of optical GeSi-Si and Si-SiO/sub 2/ semiconductor rib waveguides.
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
Single-mode optical waveguides.
TL;DR: An efficient and powerful technique has been developed to treat the problem of wave propagation along arbitrarily shaped single-mode dielectric waveguides with inhomogeneous index variations in the cross-sectional plane based on a modified finite-element method.
Journal ArticleDOI
Low-loss single-material fibers made from pure fused silica
P. Kaiser,H. W. Astle +1 more
TL;DR: In this paper, low-loss single and multimode optical fibers were fabricated from pure fused silica and their spectral losses corresponded closely to those of unclad fibers drawn from the same material, provided the cores of the single-material fiber preform were redrawn under pure conditions.
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
Weakly guiding fibers.
TL;DR: Simple formulas and functions for the fiber parameters are presented as a help for practical design work that considers the propagation constant, mode delay, the cladding field depth, and the power distribution in the fiber cross section.
Journal ArticleDOI
Bends in optical dielectric guides
TL;DR: In this article, light transmission through a curved dielectric rod of rectangular cross section embedded in different dielectrics is analyzed in closed-form, though approximate form, in three ranges: (i) small cross section guides such as a thin glass ribbon surrounded by air; making its width 1 percent of the wavelength, most of the power travels outside of the glass; the attenuation coefficient of the guide is two orders of magnitude smaller than that of glass; and the radius of curvature that doubles the straight guide loss is around 10,000Λ.
Journal ArticleDOI
Dispersion in Weakly Guiding Fibers
TL;DR: Optical signals transmitted through cladded glass fibers are subject to delay distortion because of dispersion in the material, dispersion caused by the waveguide characteristic, and delay differences between modes.
Journal ArticleDOI
Bending loss in multimode fibers with graded and ungraded core index.
TL;DR: This paper shows that this grading affects the mode volume and the loss in bends very little, if the index difference of the graded core (between the core axis and the cladding) is twice that of the homogeneous core.