Patent
Fabrication of an optical fiber waveguide with periodic variations in diameter
TLDR
In this paper, an optical fiber is drawn from an appropriate preform using a laser whose output power is varied periodically at a rate greater than ten times a second, which enhances the mode conversion properties of the fiber and reduces the pulse dispersion.Abstract:
An optical fiber is drawn from an appropriate preform using a laser whose output power is varied periodically at a rate greater than ten times a second. A fiber drawn in this manner has periodic variations in diameter which enhance the mode conversion properties of the fiber and thereby reduce the pulse dispersion of a signal transmitted through the waveguide.read more
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Patent
Method and apparatus for fabricating microlenses on optical fibers
TL;DR: In this paper, a process and apparatus for fabricating microlenses on optical fibers is described, where a pulsed laser beam and an end portion of a fiber are arranged relative to each to another so that the laser beam is incident on the end of the fiber at an acute angle θ to the longitudinal axis.
Patent
Laser sizing method and apparatus for fiber optic buffers
Paul Weinstein,Joseph Winter +1 more
TL;DR: In this article, a system for machining and sizing optical fibers is described, which uses a laser beam to machine oversized regions of a buffer material surrounding an optical fiber to create a coated optical fiber having a substantially uniform maximum outer dimension that is within a desired tolerance specification.
Patent
Method and apparatus for laser sizing of optical fibers
TL;DR: In this article, a system for machining and sizing optical fibers is described, which uses a laser beam to machine oversized regions of a buffer material surrounding an optical fiber to create a coated optical fiber having a substantially uniform maximum outer dimension that is within a desired tolerance.
Patent
Method of randomly irradiating an optical fiber core with a laser
TL;DR: In this paper, a method of manufacturing an optical fiber having a core portion doped with a dopant and a surrounding optical cladding portion is disclosed, which comprises the steps of drawing a fiber from a molten extremity of a silica preform and moving the fiber along towards a device for coating it with a protective sheath.
Patent
In line process for sequentially forming and shaping a filament
TL;DR: In this article, an artificial polymeric, glass or glass-fibre fiber is treated by exposing it to an energy flux so that the fibre absorbs energy differentially along its length, and the cross-section of the fiber is altered in response to the varying amounts of energy absorbed along the length of the fibre, to yield a fibre which has intermittent zones of relatively reduced cross-sectional.
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Patent
Fabrication of glass fibers from preform by lasers
TL;DR: In this paper, a method and apparatus for drawing both clad and unclad fibers of indefinite length from glass preforms is described and a laser beam generated by a laser operating in the far infrared is used as a source of heat.
Patent
Method of making optical waveguides from glass fibers
TL;DR: In this paper, a procedure for drawing glass fibers which are particularly suitable for use in optical waveguides is described, and an optical system is provided for focusing an annular beam around a glass preform from which the glass fiber is drawn.
Patent
Methods of introducing geometrical variations in optical fibers
TL;DR: In this paper, the diameter and axial alignment of an optical fiber is varied by means of one or more gas streams directed against the fiber as it is being drawn, and the spatial distribution of the geometrical variations produced by this means can be controlled, thereby producing controlled mode coupling.
Patent
Method of fabricating low-loss channel optical waveguides
TL;DR: In this article, a material is selected which is capable of propagating light energy and is highly absorptive of light energy within a determinable wavelength region, and a laser beam which includes such wavelength region in its output energy is focused on the surface of the selected material in a sufficent concentration to cause partial evaporation of its surface.