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1. US6597481 - Controllable wavelength-selective optical cross-connect

Office United States of America
Application Number 09271642
Application Date 18.03.1999
Publication Number 6597481
Publication Date 22.07.2003
Grant Number 6597481
Grant Date 22.07.2003
Publication Kind B1
IPC
H04J 14/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
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
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
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 6/35
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
35having switching means
H04Q 3/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
3Selecting arrangements
42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
52using static devices in switching stages, e.g. electronic switching arrangements
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
Agents Lowenstein Sandler, PC
Priority Data 60120697 19.02.1999 US
Title
(EN) Controllable wavelength-selective optical cross-connect
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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