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1. WO2012088267 - ROUGH-CLAD OPTICAL FIBERS

Publication Number WO/2012/088267
Publication Date 28.06.2012
International Application No. PCT/US2011/066475
International Filing Date 21.12.2011
IPC
G02B 6/14 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
14Mode converters
CPC
G02B 5/003
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
003Light absorbing elements
G02B 6/14
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
14Mode converters
G02B 6/266
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
264with optical elements between opposed fibre ends which perform a function other than beam splitting
266the optical element being an attenuator
H01S 3/06708
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, ; i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
067Fibre lasers
06708Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
H01S 3/094007
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
094003the pumped medium being a fibre
094007Cladding pumping, i.e. pump light propagating in a clad surrounding the active core
Applicants
  • NUFERN [US]/[US] (AllExceptUS)
  • MAJID, Imtiaz [US]/[US] (UsOnly)
  • WANG, Chih-Hao [US]/[US] (UsOnly)
  • TANKALA, Kanishka [US]/[US] (UsOnly)
Inventors
  • MAJID, Imtiaz
  • WANG, Chih-Hao
  • TANKALA, Kanishka
Agents
  • SUGGS, James, V.
Priority Data
61/426,55823.12.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ROUGH-CLAD OPTICAL FIBERS
(FR) FIBRES OPTIQUES À GAINE GROSSIÈRE
Abstract
(EN)
The present invention relates generally to optical waveguides for the transmission of electromagnetic energy. The present invention relates more particularly to optical fibers, optical fiber devices, and methods that can be used to remove cladding-propagating energy from a system. One embodiment of the invention is a rough-clad optical fiber section (100) having a first end (102) and a second end (104), the optical fiber section comprising a core (120) a glass cladding (130) disposed about the core, the cladding having an outer surface (132) having an rms surface roughness of at least about 100 nm, the outer surface not being immediately surrounded by polymer layer.
(FR)
La présente invention porte de façon générale sur des guides d'ondes optiques pour la transmission d'énergie électromagnétique. La présente invention porte plus particulièrement sur des fibres optiques, sur des dispositifs à fibres optiques, et sur des procédés qui peuvent être utilisés pour retirer une énergie de propagation de gaine à partir d'un système. Un mode de réalisation de l'invention porte sur une section de fibre optique à gaine grossière ayant une première extrémité et une seconde extrémité, laquelle section de fibre optique comprend un cœur, une gaine en verre disposée autour du cœur, la gaine ayant une surface externe ayant une rugosité de surface de valeur quadratique moyenne d'au moins environ 100 nm, la surface externe n'étant pas immédiatement entourée par une couche polymère.
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