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1. EP1031858 - Controllable wavelength-selective optical cross-connect

Office European Patent Office
Application Number 00301030
Application Date 09.02.2000
Publication Number 1031858
Publication Date 30.08.2000
Publication Kind A3
IPC
G02B 6/34
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
26Optical coupling means
34utilising prism or grating
G02B 6/293
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
H04B 10/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
02Details
G02F 1/01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
G02B 6/293
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
H04Q 11/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
CPC
G02B 6/022
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02057comprising gratings
02076Refractive index modulation gratings, e.g. Bragg gratings
02195characterised by means for tuning the grating
022using mechanical stress, e.g. tuning by compression or elongation, special geometrical shapes such as "dog-bone" or taper
G02B 6/2932
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
29304operating by diffraction, e.g. grating
29316Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
29317Light guides of the optical fibre type
29319With a cascade of diffractive elements or of diffraction operations
2932comprising a directional router, e.g. directional coupler, circulator
G02B 6/29395
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
29379characterised by the function or use of the complete device
29395configurable, e.g. tunable or reconfigurable
G02B 6/3572
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
35having switching means
3564Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
3568characterised by the actuating force
3572Magnetic force
H04Q 11/0005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
0001using optical switching
0005Switch and router aspects
H04Q 2011/0015
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
0001using optical switching
0005Switch and router aspects
0007Construction
0015using splitting combining
Applicants LUCENT TECHNOLOGIES INC
Inventors FATEHI MOHAMMED TAGHI
JIN SUNGHO
KNOX WAYNE HARVEY
MAVOORI HAREESH
Priority Data 12069799 19.02.1999 US
09271642 18.03.1999 US
Title
(DE) Steuerbares wellenlängenselektives optisches Querverbindungssystem
(EN) Controllable wavelength-selective optical cross-connect
(FR) Système de brassage optique sélectif en longeur d'ondes controllable
Abstract
(EN)
In accordance with the invention, an optical cross-connect switch includes an optical router for distributing multi-wavelength optical input signals, an optical combiner for supplying multi-wavelength signals at the output ports of the switch, and optical fibers for interconnecting the optical router and optical combiner. Selected interconnecting optical fibers include controllable wavelength-selective elements, such as magnetically controllable fiber gratings, which are capable of transmitting or reflecting individual channels within the multi-wavelength optical signals so that a selected channel of a particular wavelength can be routed from any of the input ports to any of the output ports of the switch.

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