WO2002075400A3 - Variable optical attenuator employing polarization maintaining fiber - Google Patents

Variable optical attenuator employing polarization maintaining fiber Download PDF

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Publication number
WO2002075400A3
WO2002075400A3 PCT/US2002/008629 US0208629W WO02075400A3 WO 2002075400 A3 WO2002075400 A3 WO 2002075400A3 US 0208629 W US0208629 W US 0208629W WO 02075400 A3 WO02075400 A3 WO 02075400A3
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
polarization maintaining
variable optical
optical attenuator
maintaining fiber
Prior art date
Application number
PCT/US2002/008629
Other languages
French (fr)
Other versions
WO2002075400A2 (en
Inventor
Kwok P Chan
Kim R Labarge
Original Assignee
Molecular Optoelectronics Corp
Kwok P Chan
Kim R Labarge
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 Molecular Optoelectronics Corp, Kwok P Chan, Kim R Labarge filed Critical Molecular Optoelectronics Corp
Priority to AU2002258574A priority Critical patent/AU2002258574A1/en
Publication of WO2002075400A2 publication Critical patent/WO2002075400A2/en
Publication of WO2002075400A3 publication Critical patent/WO2002075400A3/en

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
    • G02B6/264—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
    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/011—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 intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass
    • G02F1/0115—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 intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass in optical fibres
    • G02F1/0118—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 intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass in optical fibres by controlling the evanescent coupling of light from a fibre into an active, e.g. electro-optic, overlay
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/105—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects
    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/0147—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 intensity, phase, polarisation or colour  based on thermo-optic effects
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/48—Variable attenuator

Abstract

An electrically controllable, variable optical attenuator (VOA) is disclosed, in which polarization maintaining fiber (30) is employed. The fiber (30) is modified to expose the evanescent field of optical energy transmitted therein, by removing material therefrom in a direction parallel to either the fast or slow axis of the fiber (30), while preserving the polarization maintaining property of the fiber (30). A controllable material (160) is formed over the modified portion, to remove optical energy in response to a changeable stimulus applied, which changes the refractive index of the material. Related packaging, material composition and system aspects of the attenuator are also disclosed.
PCT/US2002/008629 2001-03-19 2002-03-19 Variable optical attenuator employing polarization maintaining fiber WO2002075400A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002258574A AU2002258574A1 (en) 2001-03-19 2002-03-19 Variable optical attenuator employing polarization maintaining fiber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/811,913 US6611649B2 (en) 2001-03-19 2001-03-19 Variable optical attenuator with polarization maintaining fiber
US09/811,913 2001-03-19

Publications (2)

Publication Number Publication Date
WO2002075400A2 WO2002075400A2 (en) 2002-09-26
WO2002075400A3 true WO2002075400A3 (en) 2003-10-23

Family

ID=25207933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/008629 WO2002075400A2 (en) 2001-03-19 2002-03-19 Variable optical attenuator employing polarization maintaining fiber

Country Status (3)

Country Link
US (1) US6611649B2 (en)
AU (1) AU2002258574A1 (en)
WO (1) WO2002075400A2 (en)

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GB2360602B (en) * 2000-03-23 2002-05-01 Marconi Comm Ltd Optical attenuator including dual control loops
US7286743B2 (en) * 2002-03-01 2007-10-23 Jds Uniphase Corporation High dynamic range integrated receiver
US7642628B2 (en) * 2005-01-11 2010-01-05 Rosemount Inc. MEMS packaging with improved reaction to temperature changes
US8343608B2 (en) 2010-08-31 2013-01-01 General Electric Company Use of appended dyes in optical data storage media
US20160033720A1 (en) * 2014-07-29 2016-02-04 Ofs Fitel, Llc Polarization-maintaining (pm) double-clad (dc) optical fiber
CN109518273A (en) * 2018-11-02 2019-03-26 中国航空工业集团公司西安飞行自动控制研究所 A kind of fibre optic polarizer crystal growing furnace

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Also Published As

Publication number Publication date
US20020141726A1 (en) 2002-10-03
US6611649B2 (en) 2003-08-26
WO2002075400A2 (en) 2002-09-26
AU2002258574A1 (en) 2002-10-03

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