DE69425871T2 - Optischer Schalter mit räumlichem Lichtmodulator - Google Patents

Optischer Schalter mit räumlichem Lichtmodulator

Info

Publication number
DE69425871T2
DE69425871T2 DE69425871T DE69425871T DE69425871T2 DE 69425871 T2 DE69425871 T2 DE 69425871T2 DE 69425871 T DE69425871 T DE 69425871T DE 69425871 T DE69425871 T DE 69425871T DE 69425871 T2 DE69425871 T2 DE 69425871T2
Authority
DE
Germany
Prior art keywords
light modulator
spatial light
optical switch
spatial
modulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69425871T
Other languages
English (en)
Other versions
DE69425871D1 (de
Inventor
Jr Lee Landis Blyler
Gary Joe Grimes
Jr Richard James Coyle
Anthony Joseph Serafino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69425871D1 publication Critical patent/DE69425871D1/de
Publication of DE69425871T2 publication Critical patent/DE69425871T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/29—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 for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
DE69425871T 1993-12-21 1994-12-05 Optischer Schalter mit räumlichem Lichtmodulator Expired - Fee Related DE69425871T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/171,505 US5379358A (en) 1993-12-21 1993-12-21 Optical switch having spatial light modulators

Publications (2)

Publication Number Publication Date
DE69425871D1 DE69425871D1 (de) 2000-10-19
DE69425871T2 true DE69425871T2 (de) 2001-02-01

Family

ID=22623985

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69425871T Expired - Fee Related DE69425871T2 (de) 1993-12-21 1994-12-05 Optischer Schalter mit räumlichem Lichtmodulator

Country Status (4)

Country Link
US (1) US5379358A (de)
EP (1) EP0660151B1 (de)
JP (1) JP2816314B2 (de)
DE (1) DE69425871T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768242A (en) * 1996-04-05 1998-06-16 The United States Of America As Representd By The Administrator Of The National Aeronautics And Space Administration Apparatus and method for focusing a light beam in a three-dimensional recording medium by a dynamic holographic device
US5930027A (en) * 1998-02-12 1999-07-27 Mcdonnell Douglas Corporation Digitally controlled fiber optic light modulation system
JP2003029234A (ja) 2001-07-17 2003-01-29 Nec Corp 光スイッチ装置、それを適用した光受信装置および光スイッチ網
US7110633B1 (en) 2001-08-13 2006-09-19 Calient Networks, Inc. Method and apparatus to provide alternative paths for optical protection path switch arrays
US6819821B2 (en) * 2002-03-26 2004-11-16 Agilent Technologies, Inc. Optical switch with a geometry based on perpendicularly-oriented planar lightwave circuit switches

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523435A1 (de) * 1985-06-29 1987-01-08 Licentia Gmbh Vorrichtung zur steuerung der lichtintensitaet in einem lichtleiter
US4784470A (en) * 1985-11-05 1988-11-15 Itt Defense Communications, A Division Of Itt Corporation Optical switching device
US4812002A (en) * 1986-10-24 1989-03-14 Hitachi, Ltd. Optical coupling device and method of making the same
JP2657378B2 (ja) * 1987-05-20 1997-09-24 日本テキサス・インスツルメンツ株式会社 光スイッチング装置
JPH0778590B2 (ja) * 1987-08-19 1995-08-23 キヤノン株式会社 光スイッチアレ−
US5009477A (en) * 1989-05-12 1991-04-23 At&T Bell Laboratories Optical interconnect arrangement
US4991924A (en) * 1989-05-19 1991-02-12 Cornell Research Foundation, Inc. Optical switches using cholesteric or chiral nematic liquid crystals and method of using same
JPH04287010A (ja) * 1991-03-15 1992-10-12 Furukawa Electric Co Ltd:The 導波路型光切替器
US5185824A (en) * 1991-10-29 1993-02-09 At&T Bell Laboratories Optical switch incorporating molded optical waveguide elements

Also Published As

Publication number Publication date
EP0660151A2 (de) 1995-06-28
EP0660151A3 (de) 1995-10-18
EP0660151B1 (de) 2000-09-13
JP2816314B2 (ja) 1998-10-27
US5379358A (en) 1995-01-03
DE69425871D1 (de) 2000-10-19
JPH07199237A (ja) 1995-08-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee