AT88816T - METHODS AND DEVICES FOR CHANGING THE OPTICAL POLARISATION. - Google Patents

METHODS AND DEVICES FOR CHANGING THE OPTICAL POLARISATION.

Info

Publication number
AT88816T
AT88816T AT87311107T AT87311107T AT88816T AT 88816 T AT88816 T AT 88816T AT 87311107 T AT87311107 T AT 87311107T AT 87311107 T AT87311107 T AT 87311107T AT 88816 T AT88816 T AT 88816T
Authority
AT
Austria
Prior art keywords
changing
methods
devices
optical polarisation
polarisation
Prior art date
Application number
AT87311107T
Other languages
English (en)
Inventor
Terence Geoffrey Hodgkinson
David William Smith
Original Assignee
British Telecomm
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
Priority to GB868630959A priority Critical patent/GB8630959D0/en
Application filed by British Telecomm filed Critical British Telecomm
Priority to EP87311107A priority patent/EP0277427B1/de
Publication of AT88816T publication Critical patent/AT88816T/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/516Details of coding or modulation
    • H04B10/532Polarisation modulation
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/011Devices 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
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/21Devices 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  by interference
    • G02F1/225Devices 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  by interference in an optical waveguide structure
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES 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
    • G02F2/00Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/0136Devices 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
    • G02F1/0139Polarisation scrambling devices; Depolarisers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00Optical: systems and elements
    • Y10S359/90Methods
AT87311107T 1986-12-29 1987-12-16 METHODS AND DEVICES FOR CHANGING THE OPTICAL POLARISATION. AT88816T (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB868630959A GB8630959D0 (en) 1986-12-29 1986-12-29 Optical polarisation control
EP87311107A EP0277427B1 (de) 1986-12-29 1987-12-16 Methoden und Vorrichtungen zur Änderung der optischen Polarisation

Publications (1)

Publication Number Publication Date
AT88816T true AT88816T (de) 1993-05-15

Family

ID=10609631

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87311107T AT88816T (de) 1986-12-29 1987-12-16 METHODS AND DEVICES FOR CHANGING THE OPTICAL POLARISATION.

Country Status (10)

Country Link
US (1) US5031236A (de)
EP (1) EP0277427B1 (de)
JP (1) JP2626896B2 (de)
AT (1) AT88816T (de)
AU (1) AU598619B2 (de)
CA (1) CA1305523C (de)
DE (1) DE3785662T2 (de)
ES (1) ES2040756T3 (de)
GB (1) GB8630959D0 (de)
HK (1) HK130296A (de)

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GB8709247D0 (en) * 1987-04-16 1987-06-10 British Telecomm Optical signal control
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DE58908768D1 (de) * 1988-09-30 1995-01-26 Siemens Ag Verfahren zum synchronisierten Umtasten eines Polarisationszustandes eines optischen Sendesignals eines optischen Übertragungssystems mit Überlagerungsempfang und Vorrichtung zur Durchführung des Verfahrens.
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IT1232056B (it) * 1989-03-28 1992-01-23 Cselt Centro Studi Lab Telecom Modulatore veloce della polarizza zione di una portante ottica
IT1238535B (it) * 1989-11-14 1993-08-18 Cselt Centro Studi Lab Telecom Sistema di comunicazione coerente in fibra ottica a diversita' di polarizzazione in trasmissione
US5126871A (en) * 1989-11-15 1992-06-30 General Instrument Corporation Method and apparatus for redundant communication of optical signals with distortion cancellation
IT1241209B (it) * 1990-04-27 1993-12-29 Cselt Centro Studi Lab Telecom OPTICAL POLARIZATION MODULATOR USING INTERFEROMETRIC STRUCTURES
IT1239609B (it) * 1990-05-11 1993-11-11 Bordoni Ugo Fondazione Metodo per la formazione di un segnale multilivello su una portante ottica coerente mediante modulazione di fase e di polarizzazione della portante e apparato di trasmissione e di ricezione eterodina di segnali formati con tale metodo
JP3001943B2 (ja) * 1990-08-30 2000-01-24 株式会社東芝 偏波スイッチング光源、光受信装置及びコヒーレント光伝送システム
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JP3226067B2 (ja) * 1992-10-03 2001-11-05 キヤノン株式会社 光通信方法及び光通信システム
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US5631559A (en) * 1993-03-05 1997-05-20 Northeastern University Method and apparatus for performing magnetic field measurements using magneto-optic kerr effect sensors
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US5309530A (en) * 1993-04-30 1994-05-03 At&T Bell Laboratories Technique utilizing stress-induced birefringence for reducing polarization dependent hole-burning in an amplified optical transmission system
US5327511A (en) * 1993-06-18 1994-07-05 At&T Bell Laboratories Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and polarization dependent loss
US5359678A (en) * 1993-06-18 1994-10-25 At&T Bell Laboratories Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss
DE4340089A1 (de) * 1993-09-29 1995-03-30 Reinhold Prof Dr Ing Noe Polarisationsanalysator
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DE19640725A1 (de) * 1996-10-02 1998-04-09 Reinhold Prof Dr Ing Noe Netzwerkanalysator
JPH10206661A (ja) * 1997-01-28 1998-08-07 Fujitsu Ltd 偏波スクランブラ及びそれを用いた光集積回路
US5970188A (en) * 1997-06-20 1999-10-19 Sprint Communications Company L.P. Method and apparatus for controlling an optical signal
EP0928080A1 (de) * 1997-12-31 1999-07-07 PIRELLI CAVI E SISTEMI S.p.A. Unterdrückung polarisationsabhängigem Locheinbrennen mit einem akusto-optischen Modulator
US6377378B1 (en) 1998-01-16 2002-04-23 Pirelli Cavi E Sistemi S.P.A. Suppression of polarization hole burning with an acousto-optic modulator
US6671056B2 (en) * 2001-01-11 2003-12-30 Agilent Technologies, Inc Method and system for optical spectrum analysis with a depolarized local oscillator signal
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DE10147053A1 (de) * 2001-09-25 2003-04-03 Siemens Ag Polarisationsumsetzer für Polarisationsmultiplex und optischen Überlagerungsempfang
KR100853233B1 (ko) * 2002-01-17 2008-08-20 김영호 광스위치를 이용한 정보보안장치 및 암호화 장치
US20040208646A1 (en) * 2002-01-18 2004-10-21 Seemant Choudhary System and method for multi-level phase modulated communication
GB2394375A (en) * 2002-10-19 2004-04-21 Bookham Technology Plc Integrated optical monitor with polarisation scrambling
US7361171B2 (en) 2003-05-20 2008-04-22 Raydiance, Inc. Man-portable optical ablation system
US9022037B2 (en) 2003-08-11 2015-05-05 Raydiance, Inc. Laser ablation method and apparatus having a feedback loop and control unit
US8173929B1 (en) 2003-08-11 2012-05-08 Raydiance, Inc. Methods and systems for trimming circuits
JP2005333311A (ja) * 2004-05-19 2005-12-02 Chugoku Electric Power Co Inc:The 2心双方向通信網における事故回復方法
DE602004020595D1 (de) 2004-05-19 2009-05-28 Alcatel Lucent Verfahren zum Steuern eines optischen Übertragungs- und Empfangssystems mit bitweise alternierender Polarisierung eines Bitstroms
US20060056480A1 (en) * 2004-09-15 2006-03-16 Mielke Michael M Actively stabilized systems for the generation of ultrashort optical pulses
US8135050B1 (en) 2005-07-19 2012-03-13 Raydiance, Inc. Automated polarization correction
US8189971B1 (en) 2006-01-23 2012-05-29 Raydiance, Inc. Dispersion compensation in a chirped pulse amplification system
US7444049B1 (en) 2006-01-23 2008-10-28 Raydiance, Inc. Pulse stretcher and compressor including a multi-pass Bragg grating
US9130344B2 (en) 2006-01-23 2015-09-08 Raydiance, Inc. Automated laser tuning
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JP4565256B2 (ja) * 2008-07-22 2010-10-20 独立行政法人情報通信研究機構 偏光方向同期検出回路及び受信装置
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US8670664B2 (en) 2010-02-26 2014-03-11 Fujitsu Limited System and method for managing the selection of ghost channels for mitigating polarization hole burning
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Also Published As

Publication number Publication date
EP0277427B1 (de) 1993-04-28
HK130296A (en) 1996-07-26
US5031236A (en) 1991-07-09
CA1305523C (en) 1992-07-21
EP0277427A1 (de) 1988-08-10
AU598619B2 (en) 1990-06-28
GB8630959D0 (en) 1987-02-04
DE3785662T2 (de) 1993-08-19
JP2626896B2 (ja) 1997-07-02
ES2040756T3 (es) 1993-11-01
AU8305987A (en) 1988-06-30
DE3785662D1 (de) 1993-06-03
JPS63174435A (en) 1988-07-18

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties