AU4668901A - Variable optical attenuator - Google Patents

Variable optical attenuator

Info

Publication number
AU4668901A
AU4668901A AU46689/01A AU4668901A AU4668901A AU 4668901 A AU4668901 A AU 4668901A AU 46689/01 A AU46689/01 A AU 46689/01A AU 4668901 A AU4668901 A AU 4668901A AU 4668901 A AU4668901 A AU 4668901A
Authority
AU
Australia
Prior art keywords
variable optical
optical attenuator
attenuator
variable
optical
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.)
Abandoned
Application number
AU46689/01A
Inventor
Adrian Janssen
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.)
Nortel Networks Ltd
Original Assignee
Nortel Networks Ltd
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 Nortel Networks Ltd filed Critical Nortel Networks Ltd
Publication of AU4668901A publication Critical patent/AU4668901A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/353—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being a shutter, baffle, beam dump or opaque element
    • 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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
    • 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
    • G02B6/35—Optical coupling means having switching means
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3592—Means for removing polarization dependence of the switching means, i.e. polarization insensitive 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3548—1xN switch, i.e. one input and a selectable single output of N possible outputs
    • G02B6/3552—1x1 switch, e.g. on/off switch
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G02B6/3582—Housing means or package or arranging details of the switching elements, e.g. for thermal isolation
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3594—Characterised by additional functional means, e.g. means for variably attenuating or branching or means for switching differently polarized beams

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Couplings Of Light Guides (AREA)
AU46689/01A 2000-04-05 2001-04-04 Variable optical attenuator Abandoned AU4668901A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US54325400A 2000-04-05 2000-04-05
US09543254 2000-04-05
PCT/GB2001/001559 WO2001075503A2 (en) 2000-04-05 2001-04-04 Variable optical attenuator

Publications (1)

Publication Number Publication Date
AU4668901A true AU4668901A (en) 2001-10-15

Family

ID=24167226

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46689/01A Abandoned AU4668901A (en) 2000-04-05 2001-04-04 Variable optical attenuator

Country Status (2)

Country Link
AU (1) AU4668901A (en)
WO (1) WO2001075503A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2379746A (en) * 2001-09-18 2003-03-19 Marconi Caswell Ltd Shutter assembly for telecommunication networks
GB0201969D0 (en) 2002-01-29 2002-03-13 Qinetiq Ltd Integrated optics devices
KR20030069488A (en) * 2002-02-20 2003-08-27 주식회사 엘지이아이 Variable optical attenuator
KR100490754B1 (en) 2002-11-15 2005-05-24 한국전자통신연구원 Variable optical attenuator with tunable wavelength dependence

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186203A (en) * 1937-12-11 1940-01-09 Centeno Melchor Optical filter
EP0276337B1 (en) * 1987-01-24 1989-11-29 Dr.-Ing. Rudolf Hell GmbH Aperture stop arrangement for the optoelectronic scanning of documents
DE3744060A1 (en) * 1987-12-22 1989-07-13 Juergen Krebs Optical arrangement for high-performance slide projectors
US5068679A (en) * 1989-04-28 1991-11-26 Olympus Optical Co., Ltd. Imaging system for macrophotography
DE4212077A1 (en) * 1992-04-10 1993-10-14 Fraunhofer Ges Forschung Piezoelectric valve and process for its manufacture
AU1902395A (en) * 1994-03-17 1995-10-03 Thomson Training & Simulation Limited Edge-blending of projected images
CA2227920A1 (en) * 1998-01-27 1999-07-27 Chung-Shan Institute Of Science And Technology Method and device for eliminating edges of two projection pictures
US6163643A (en) * 1998-08-12 2000-12-19 Lucent Technologies Inc. Micro-mechanical variable optical attenuator
US6167185A (en) * 1998-11-24 2000-12-26 Jds Fitel Inc. Adjustable optical attenuator
WO2001041455A1 (en) * 1999-11-29 2001-06-07 Barco N.V. Optical soft edge matching method for light valve projectors

Also Published As

Publication number Publication date
WO2001075503A2 (en) 2001-10-11
WO2001075503A3 (en) 2002-08-01

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase