WO2003040769A3 - Polarization control using polarization modulation - Google Patents

Polarization control using polarization modulation Download PDF

Info

Publication number
WO2003040769A3
WO2003040769A3 PCT/IB2002/005363 IB0205363W WO03040769A3 WO 2003040769 A3 WO2003040769 A3 WO 2003040769A3 IB 0205363 W IB0205363 W IB 0205363W WO 03040769 A3 WO03040769 A3 WO 03040769A3
Authority
WO
WIPO (PCT)
Prior art keywords
polarization
state
modulation
modifying
output state
Prior art date
Application number
PCT/IB2002/005363
Other languages
French (fr)
Other versions
WO2003040769A2 (en
Inventor
Paul Melman
Gilead Tadmor
Original Assignee
Newton Photonics Inc
Paul Melman
Gilead Tadmor
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 Newton Photonics Inc, Paul Melman, Gilead Tadmor filed Critical Newton Photonics Inc
Priority to AU2002353326A priority Critical patent/AU2002353326A1/en
Publication of WO2003040769A2 publication Critical patent/WO2003040769A2/en
Publication of WO2003040769A3 publication Critical patent/WO2003040769A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2572—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to forms of polarisation-dependent distortion other than PMD
    • 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 
    • G02F1/0136—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  for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation
    • 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 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/141—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using ferroelectric liquid crystals

Abstract

A polarization controller (60), for converting an input state of polarization of a received input optical signal into an output state of polarization, comprises a plurality of polarization modifying stages (20,30) for modifying the input state of polarization into the output state of polarization. Each stage allows converting an optical signal from a first state of polarization to a second state of polarization. A modulation unit modulates operation of the polarization modifying stages (30) . A control unit receives a signal in response to the modulation, to derive therefrom an error signal indicative of a deviation of the output state of polarization from a target state of polarization, and to control operation of the plurality of polarization modifying stages in order to reduce the deviation of the output state of polarization from the target state of polarization.
PCT/IB2002/005363 2001-11-09 2002-10-16 Polarization control using polarization modulation WO2003040769A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002353326A AU2002353326A1 (en) 2001-11-09 2002-10-16 Polarization control using polarization modulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34820801P 2001-11-09 2001-11-09
US60/348,208 2001-11-09

Publications (2)

Publication Number Publication Date
WO2003040769A2 WO2003040769A2 (en) 2003-05-15
WO2003040769A3 true WO2003040769A3 (en) 2004-05-27

Family

ID=23367047

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2002/005363 WO2003040769A2 (en) 2001-11-09 2002-10-16 Polarization control using polarization modulation
PCT/IB2002/004700 WO2003040768A2 (en) 2001-11-09 2002-10-16 Polarization controlling

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/004700 WO2003040768A2 (en) 2001-11-09 2002-10-16 Polarization controlling

Country Status (2)

Country Link
AU (2) AU2002348972A1 (en)
WO (2) WO2003040769A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100389340C (en) * 2006-04-14 2008-05-21 北京高光科技有限公司 Device and method for quantitatively adjusting polarization

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263612A1 (en) * 1986-09-22 1988-04-13 BRITISH TELECOMMUNICATIONS public limited company Optical signal control method and apparatus
US5212743A (en) * 1992-02-12 1993-05-18 At&T Bell Laboratories Automatic polarization controller having broadband, reset-free operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536576A1 (en) * 1995-09-29 1997-04-03 Siemens Ag Elliptically-polarised light generating device
DE19833312A1 (en) * 1998-07-24 2000-02-03 Deutsche Telekom Ag Device for regulating the polarization of incident light and polarization adjusting device for such a regulating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263612A1 (en) * 1986-09-22 1988-04-13 BRITISH TELECOMMUNICATIONS public limited company Optical signal control method and apparatus
US5212743A (en) * 1992-02-12 1993-05-18 At&T Bell Laboratories Automatic polarization controller having broadband, reset-free operation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HEISMANN F: "ANALYSIS OF A RESET-FREE POLARIZATION CONTROLLER FOR FAST AUTOMATICPOLARIZATION STABILIZATION IN FIBER-OPTIC TRANSMISSION SYSTEMS", JOURNAL OF LIGHTWAVE TECHNOLOGY, IEEE. NEW YORK, US, vol. 12, no. 4, 1 April 1994 (1994-04-01), pages 690 - 699, XP000470369, ISSN: 0733-8724 *

Also Published As

Publication number Publication date
AU2002353326A1 (en) 2003-05-19
WO2003040768A3 (en) 2004-05-27
WO2003040768A2 (en) 2003-05-15
WO2003040769A2 (en) 2003-05-15
AU2002348972A1 (en) 2003-05-19

Similar Documents

Publication Publication Date Title
WO2002099605A3 (en) Method and apparatus for modular embedded control system
WO2004047263A3 (en) Power converter circuitry and method
WO2004072589A3 (en) Digital control system and method for switched mode power supply
EP1357476A3 (en) Method for controlling storage system, and storage control apparatus
WO2002093794A3 (en) Optical amplifier performance controller and method of use
EP2276170A3 (en) High reliability RF generator architecture
WO2003058827A3 (en) Laser optics integrated control system and method of operation
WO2004047273A3 (en) Power converter circuitry and method
CA2273151A1 (en) Efficient parallel-stage power amplifier
EP1182529A3 (en) Industrial control based on distributed technological objects
EP0809347A3 (en) Control system for a modular power supply and method of operation thereof
WO2003036368A1 (en) Phase modulation apparatus and phase modulation method
AU2283200A (en) Level shift circuit
WO2002005432A3 (en) Sigma-delta modulator with an adjustable feedback factor
EP1170627A3 (en) Optical gate and optical phase modulator
EP1133083A3 (en) In-line polarization monitoring and control in lightwave communication systems
AU2002339095A1 (en) Optical crossbar switch
WO2002080351A8 (en) System for controlling the frequency of an oscillator
WO2003034109A3 (en) Planar-type polarization independent optical isolator
WO2002103440A3 (en) Multi-stage polarization transformer
AU6575696A (en) Method of controlling an exchange
AU2609101A (en) Remote sensing by high-order filtering
WO2006039823A3 (en) Signal transmission system for activating a power semiconductor switch, and a converter equipped with a signal transmission system of this type
WO2003040769A3 (en) Polarization control using polarization modulation
WO2003030015A3 (en) Method and apparatus for performing modular exponentiation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC 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 OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP