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1. (WO2001033289) LIQUID CRYSTAL PLANAR NON-BLOCKING NxN CROSS-CONNECT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/033289 International Application No.: PCT/US2000/028028
Publication Date: 10.05.2001 International Filing Date: 10.10.2000
Chapter 2 Demand Filed: 03.05.2001
IPC:
G02F 1/1333 (2006.01) ,G02F 1/1337 (2006.01) ,G02F 1/313 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1337
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
29
for the control of the position or the direction of light beams, i.e. deflection
31
Digital deflection devices
313
in an optical waveguide structure
Applicants: CORNING INCORPORATED[US/US]; 1 Riverfront Plaza Corning, NY 14831, US
Inventors: LESLIE, Thomas, M.; US
LINDQUIST, Robert, G.; US
Agent: MALLEY, Daniel, P.; Corning Incorporated SP TI 3 1 Corning, NY 14831, US
BEAN, Gregory, V. ; Corning Incorporated SP-TI-03 Corning, NY 14831, US
Priority Data:
09/431,43001.11.1999US
Title (EN) LIQUID CRYSTAL PLANAR NON-BLOCKING NxN CROSS-CONNECT
(FR) REPARTITEUR NxN NON BLOQUANT PLAT A CRISTAUX LIQUIDES
Abstract:
(EN) A non-blocking NxN cross-connect is provided that has an array of liquid crystal (LC) switches in a grid of planar optical waveguides within a light optical circuit (LOC). LC filled trenches are used in a planar optical waveguide and each trench provides the functionality of a waveguide polarization splitter, a transverse electric (TE) switch cross point, a transverse magnetic (TM) switch cross point, or a waveguide polarization combiner. By combining these elements, a cross-connect system is fabricated.
(FR) L'invention concerne un répartiteur NxN non bloquant présentant une matrice commutateur à cristaux liquides (CL) dans un quadrillage de guides d'ondes optiques plans à l'intérieur d'un circuit d'éclairage optique (CEO). Les tranchées remplies de cristaux liquides sont utilisées dans un guide d'ondes optiques plan et chaque tranchée a la fonction d'un séparateur de polarisation de guide d'ondes; d'un point de contact de commutation électrique transversale; d'un point de contact de commutation magnétique transversale; ou d'un combineur de polarisation de guide d'ondes. Un répartiteur est fabriqué par combinaison de ces éléments.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)