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1. WO2000039629 - ACOUSTO-OPTICAL DEVICE

Publication Number WO/2000/039629
Publication Date 06.07.2000
International Application No. PCT/EP1999/010039
International Filing Date 17.12.1999
Chapter 2 Demand Filed 18.07.2000
IPC
G02F 1/125 2006.01
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
11based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
125in an optical waveguide structure
G02F 1/335 2006.01
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
29for the control of the position or the direction of light beams, i.e. deflection
33Acousto-optical deflection devices
335having an optical waveguide structure
H04J 14/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
CPC
G02F 1/125
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 
11based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
125in an optical waveguide structure
G02F 1/335
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
29for the control of the position or the direction of light beams, i.e. deflection
33Acousto-optical deflection devices
335having an optical waveguide structure
G02F 2203/055
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
2203Function characteristic
05wavelength dependent
055wavelength filtering
H04J 14/0212
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
02Wavelength-division multiplex systems
0201Add-and-drop multiplexing
0202Arrangements therefor
021Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
0212using optical switches or wavelength selective switches [WSS]
Applicants
  • OPTICAL TECHNOLOGIES ITALIA S.P.A. [IT/IT]; Viale Sarca, 222 I-20126 Milano, IT (AllExceptUS)
  • SCHMID, Steffen [DE/IT]; IT (UsOnly)
Inventors
  • SCHMID, Steffen; IT
Agents
  • GIANNESI, Pier, Giovanni; Pirelli S.p.A. Industrial Property Dept. Viale Sarca, 222 I-20126 Milano, IT
Priority Data
60/115,63312.01.1999US
98124698.624.12.1998EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ACOUSTO-OPTICAL DEVICE
(FR) MULTIPLEXEUR A INSERTION-EXTRACTION A REFLEXION INTERIEURE EN LIGNE ET BRASSEUR OPTIQUE A SELECTION DE LONGUEUR D'ONDES
Abstract
(EN)
An acousto-optical add/drop multiplexer includes an acousto-optical switch (8) including a first optical port (202) coupled to a first polarization splitter, at least one polarization converter coupled between the first polarization splitter and a second polarization splitter, and second and third optical ports (203) and (205) coupled to the second splitter. A first circulator (7) is coupled to the first optical port, a mirror (13) is coupled to the second optical port, and a second circulator (12) is coupled to the third optical port. A wavelength selective optical cross-connect may be realized by coupling two such acousto-optical add/drop multiplexers by a single optical fiber to their respective third optical ports.
(FR)
L'invention concerne un multiplexeur à insertion-extraction acousto-optique comprenant un commutateur acousto-optique qui comporte une première ouverture optique couplée à un premier séparateur de polarisation, au moins un convertisseur de polarisation couplé au premier séparateur de polarisation et à un deuxième séparateur de polarisation, et une deuxième et une troisième ouvertures optiques couplées au deuxième séparateur de polarisation. Un premier circulateur est couplé à la première ouverture optique, un miroir est couplé à la deuxième ouverture optique et un deuxième circulateur est couplé à la troisième ouverture optique. On peut réaliser un brasseur optique à sélection de longueur d'ondes en couplant deux de ces multiplexeurs à insertion-extraction acousto-optiques, au moyen d'une fibre optique unique, à leur troisième ouverture optique respective.
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