Patent
Optical fiber comprising a refractive index trench
TLDR
In this article, a single mode optical fiber is disclosed and the refractive index profile of the fiber comprises a depressed index or trench region in the cladding region, which can be adjusted by suitable adjustment of the position, width and index of the trench region.Abstract:
A single mode optical fiber is disclosed. The refractive index profile of the fiber comprises a depressed-index or trench region in the cladding region. By suitable adjustment of the position, width and index of the trench region, one or more fiber characteristics can be improved, relative to a similar fiber that does not comprise an index trench.read more
Citations
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Patent
Bend resistant multimode optical fiber
TL;DR: In this paper, a core region and a cladding region surrounding and directly adjacent to the core region are described, with a depressed-index annular portion comprising a depressed relative refractive index.
Patent
Single mode optical fiber
Louis-Anne de Montmorillon,Denis Molin,Pieter Matthijsse,Frans Gooijer,Emmanuel Petitfrere,Yves Lumineau,Franciscus Johannes Achten,Marianne Bigot-Astruc,Pierre Sillard,Pascale Nouchi +9 more
TL;DR: Disclosed is an optical transmission fiber having reduced bending and micro-bending losses that is commercially usable in FTTH or FTTC transmission systems as mentioned in this paper, but it is not suitable for FTTH systems.
Patent
Bend-insensitive single-mode optical fiber
De Montmorillon Louis-Anne,Richard Simon,Denis Molin,Boivin David,Marianne Bigot-Astruc,Pierre Sillard +5 more
TL;DR: In this paper, a singlemode optical fiber with bending losses of 0.15 dB/turn or less for a radius of curvature of 5 millimeters is presented, at a wavelength of 1550 nanometers.
Patent
Electromagnetic mode conversion in photonic crystal multimode waveguides
Ori Weisberg,Steven G. Johnson,John D. Joannopoulos,Michael Shapiro,Yoel Fink,Mihai Ibanescu +5 more
TL;DR: In this paper, a method for converting electromagnetic (EM) energy between guided modes of a photonic crystal waveguide (800) having a waveguide axis (810) was proposed.
Patent
Dispersion compensating devices and systems
A. Joseph Antos,Michael Gregg Blankenship,Douglas Warren Hall,Edward Francis Murphy,David K. Smith +4 more
TL;DR: Disclosed is a family of dispersion compensating optical fibers that are adapted for use with conventional singlemode transmission fibers that were optimized for zero dispersion operation at a wavelength in the range from 1290 nm to 1330 nm to form a transmission link suitable for low dispersion operations in the 1520-1565 nm wavelength window.
References
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Patent
Optical fiber fabrication and resulting product
TL;DR: In this article, a preform for fabrication of a glass fiber optical transmission line is prepared by chemical reaction of vapor ingredients within a glass tube, which may be between chlorides or hydrides of, for example, silicon and germanium with oxygen, occurs preferentially within a constantly traversing hot zone.
Patent
Low dispersion, low-loss single-mode optical waveguide
TL;DR: In this paper, the core index depression characteristics such as radial location, width, depth and shape are selected to achieve the desired waveguide dispersion characteristics, without adverse effect on system loss.
Journal ArticleDOI
Calculation of modes in an optical fiber using the finite element method and EISPACK
TL;DR: This paper presents a method for computing the propagation modes of a circular optical fiber that reduces Maxwell's equations to standard eigenvalue equations involving symmetric tridiagonal matrices and indicates that the method is reliable, economical, and comprehensive, applying to both single and multimode fibers.
Patent
Modified chemical vapor deposition of an optical fiber using an rf plasma
TL;DR: In this article, the modified chemical vapor deposition process is practiced using an rf source as the external heat source, and a rf plasma is established within a glass tube through which appropriate glass precursor vapors are passed.
Patent
Single mode optical fiber
TL;DR: In this article, a single mode optical fiber consisting of a core, a first cladding surrounding the core, and a second cladding region (or index ''ring'') is described.