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1. US20060159398 - Method and optical fiber device for production of low noise continuum

Office United States of America
Application Number 11300593
Application Date 15.12.2005
Publication Number 20060159398
Publication Date 20.07.2006
Grant Number 7403688
Grant Date 22.07.2008
Publication Kind B2
IPC
G02B 6/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
CPC
G02B 6/02333
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02295Microstructured optical fibre
02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
02319characterised by core or core-cladding interface features
02333Core having higher refractive index than cladding, e.g. solid core, effective index guiding
G02B 6/02247
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02214tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
02219Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
02247Dispersion varying along the longitudinal direction, e.g. dispersion managed fibre
G02B 6/02347
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02295Microstructured optical fibre
02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
02342characterised by cladding features, i.e. light confining region
02347Longitudinal structures arranged to form a regular periodic lattice, e.g. triangular, square, honeycomb unit cell repeated throughout cladding
G02B 6/02376
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02295Microstructured optical fibre
02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
02342characterised by cladding features, i.e. light confining region
02376Longitudinal variation along fibre axis direction, e.g. tapered holes
G02B 6/2552
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
255Splicing of light guides, e.g. by fusion or bonding
2552reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
G02B 6/305
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
30for use between fibre and thin-film device
305and having an integrated mode-size expanding section, e.g. tapered waveguide
Applicants University of Rochester
Inventors Knox Wayne H.
Lu Fei
Agents Blank Rome LLP
Priority Data 60636101 16.12.2004 US
Title
(EN) Method and optical fiber device for production of low noise continuum
Abstract
(EN)

A waveguide, such as a holey fiber or other optical fiber, is tapered to control the dispersion in a manner which varies along the length of the tapered portion of the fiber, thus providing the desired characteristics of the fiber. The longitudinal variation of the phase-matching conditions for Cherenkov radiation (CR) and four-wave mixing (FWM) introduced by DMM allow the generation of low-noise supercontinuum. The flexibility of the design permits the designer to control the tapering to select the bandwidth, the center frequency, or both. The holey fiber can be a polarization-maintaining fiber.