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1. (WO2001033286) OPTICAL SHUTTER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/033286 International Application No.: PCT/US2000/030353
Publication Date: 10.05.2001 International Filing Date: 03.11.2000
Chapter 2 Demand Filed: 30.05.2001
IPC:
G02B 26/02 (2006.01) ,G02F 1/01 (2006.01) ,G02F 1/29 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26
Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
02
for controlling the intensity of light
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
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
Applicants: CARLSON, Steven, A.[US/US]; US
Inventors: CARLSON, Steven, A.; US
Agent: CARLSON, Steven, A. ; Sampson & Associates, P.C. 50 Congress Street Boston, MA 02109, US
Priority Data:
60/163,34903.11.1999US
Title (EN) OPTICAL SHUTTER
(FR) OBTURATEUR OPTIQUE
Abstract:
(EN) The present invention pertains to an optical shutter comprising an organic free compound, preferably a radical cation or a radical anion, wherein the organic free radical compound forms a reaction product having a change in absorption in a near-infrared or a wavelength region as a result of a photo-induced reaction of the free radical compound. Preferably, the photo-induced reaction occurs in less than 0.1 nanoseconds after absorption of photons by the free radical compound. Also, preferably, the change in absorption is reversible, and the optical shutter is reversibly imaged in less than 10 milliseconds to regenerate the free radical compound. Provided is an optical shutter for use as an optical switch in fiber optic communications, and, alternatively, for use in a laser protection device, a security protection system, and an eyewear device. Also provided are optical switch arrays, optical buffers, optical routers, and tunable optical gain filters comprising such optical shutters.
(FR) La présente invention concerne un obturateur optique comprenant un composé libre organique, de préférence un cation radical ou un anion radical, dans lequel le composé radical libre organique forme un produit de réaction présentant un changement d'absorption dans l'infrarouge proche ou dans une plage de longueurs d'onde à la suite d'une réaction photo-induite du composé radical libre. Cette réaction photo-induite se produit de préférence en moins de 0,1 nanoseconde après l'absorption de photons par ledit composé radical. En outre, le changement d'absorption est, de préférence, réversible et l'obturateur optique est imagé de manière réversible en moins de 10 millisecondes afin de régénérer le composé radical libre. L'invention concerne également un obturateur optique s'utilisant comme commutateur optique dans des télécommunications par fibres optiques et, éventuellement, dans un dispositif de protection laser, un système de protection de sécurité, et un dispositif oculaire. L'invention concerne enfin des matrices de commutateurs optiques, des tampons optiques, des routeurs optiques et des filtres de gain optique accordables comprenant de tels obturateurs optiques.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)