ATE112115T1 - Kohärentes optisches system mit mehreren ebenen. - Google Patents

Kohärentes optisches system mit mehreren ebenen.

Info

Publication number
ATE112115T1
ATE112115T1 AT91920988T AT91920988T ATE112115T1 AT E112115 T1 ATE112115 T1 AT E112115T1 AT 91920988 T AT91920988 T AT 91920988T AT 91920988 T AT91920988 T AT 91920988T AT E112115 T1 ATE112115 T1 AT E112115T1
Authority
AT
Austria
Prior art keywords
phase
pct
signal
polarization
multilevel
Prior art date
Application number
AT91920988T
Other languages
English (en)
Inventor
Silvello Betti
Franco Curti
Marchis Giancarlo De
Eugenio Iannone
Original Assignee
Bordoni Ugo Fondazione
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 Bordoni Ugo Fondazione filed Critical Bordoni Ugo Fondazione
Application granted granted Critical
Publication of ATE112115T1 publication Critical patent/ATE112115T1/de

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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/532—Polarisation modulation
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/65—Intradyne, i.e. coherent receivers with a free running local oscillator having a frequency close but not phase-locked to the carrier signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
AT91920988T 1990-05-11 1991-05-06 Kohärentes optisches system mit mehreren ebenen. ATE112115T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT47949A IT1239609B (it) 1990-05-11 1990-05-11 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

Publications (1)

Publication Number Publication Date
ATE112115T1 true ATE112115T1 (de) 1994-10-15

Family

ID=11263552

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91920988T ATE112115T1 (de) 1990-05-11 1991-05-06 Kohärentes optisches system mit mehreren ebenen.

Country Status (6)

Country Link
US (1) US5416628A (de)
EP (1) EP0527966B1 (de)
AT (1) ATE112115T1 (de)
DE (1) DE69104199D1 (de)
IT (1) IT1239609B (de)
WO (1) WO1991018455A1 (de)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2770613B2 (ja) * 1991-07-29 1998-07-02 日本電気株式会社 光シグナリング伝送方式
US5299047A (en) * 1992-04-02 1994-03-29 At&T Bell Laboratories Ternary data communication using multiple polarizations
GB2274751B (en) * 1993-02-02 1996-11-06 Northern Telecom Ltd Optically amplified transmission systems
GB9302022D0 (en) * 1993-02-02 1993-03-17 Northern Telecom Ltd Optically amplified transmission systems
BE1007429A3 (nl) * 1993-08-02 1995-06-13 Philips Electronics Nv Coherentie multiplex transmissiesysteem.
FR2717331B1 (fr) * 1994-02-18 1996-04-05 Cit Alcatel Système de communication optique à brouilleur de polarisation.
FR2719957B1 (fr) * 1994-05-11 1996-08-09 France Telecom Procédé pour la transmission d'informations codées sous forme binaire par un train de solitons.
US5760940A (en) * 1995-10-27 1998-06-02 Lucent Technologies Inc. Methods for monitoring optical path characteristics in an optical communication system
US5790293A (en) * 1995-10-27 1998-08-04 Lucent Technologies Inc. Systems for monitoring optical path characteristics in an optical communication system
JP3567763B2 (ja) * 1998-06-12 2004-09-22 Ｋｄｄｉ株式会社 光送信装置
DE69901158T2 (de) * 1999-02-04 2002-10-31 Lucent Technologies Inc., Murray Hill Polarisationsmodulation für optische Übertragung
US6738105B1 (en) * 2000-11-02 2004-05-18 Intel Corporation Coherent light despeckling
US7173551B2 (en) 2000-12-21 2007-02-06 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
CA2330195A1 (en) * 2001-01-03 2002-07-03 Melih Ogmen Multi wavelength coding for digital signal processing
US20020109883A1 (en) * 2001-02-12 2002-08-15 Teradvance Communications, Llc Method and apparatus for optical data transmission at high data rates with enhanced capacity using polarization multiplexing
US20020131125A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Replicated-spectrum photonic transceiving
US6407846B1 (en) 2001-03-16 2002-06-18 All Optical Networks, Inc. Photonic wavelength shifting method
US20020131100A1 (en) * 2001-03-16 2002-09-19 Myers Michael H. Method for photonic wavelength error detection
US7149256B2 (en) * 2001-03-29 2006-12-12 Quellan, Inc. Multilevel pulse position modulation for efficient fiber optic communication
US7307569B2 (en) * 2001-03-29 2007-12-11 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
EP1384338B1 (de) * 2001-04-04 2010-12-15 Quellan, Inc. Verfahren und system zum decodieren von mehrpegelsignalen
US20030030873A1 (en) * 2001-05-09 2003-02-13 Quellan, Inc. High-speed adjustable multilevel light modulation
US6865345B2 (en) * 2001-08-28 2005-03-08 Agilent Technologies, Inc. Frequency translating devices and frequency translating measurement systems that utilize light-activated resistors
US6990296B2 (en) * 2001-12-21 2006-01-24 Fujitsu Limited Optical phase modulation
US7212580B2 (en) * 2002-02-15 2007-05-01 Quellan, Inc. Multi-level signal clock recovery technique
WO2003077423A2 (en) * 2002-03-08 2003-09-18 Quellan, Inc. High speed analog-to-digital converter using a unique gray code having minimal bit transitions
WO2003092237A1 (en) * 2002-04-23 2003-11-06 Quellan, Inc. Combined ask/dpsk modulation system
JP2004013681A (ja) * 2002-06-10 2004-01-15 Bosu & K Consulting Kk 名刺情報管理システム
AU2003256569A1 (en) * 2002-07-15 2004-02-02 Quellan, Inc. Adaptive noise filtering and equalization
US7934144B2 (en) 2002-11-12 2011-04-26 Quellan, Inc. High-speed analog-to-digital conversion with improved robustness to timing uncertainty
US6961129B2 (en) * 2003-05-15 2005-11-01 Agilent Technologies, Inc. Active control of two orthogonal polarizations for heterodyne interferometry
DE102004022654A1 (de) * 2003-05-15 2004-12-23 Agilent Technologies, Inc. (n.d.Ges.d.Staates Delaware), Palo Alto Heterodynstrahl-Bereitstellung mit Aktivsteuerung zweier orthogonaler Polarisierungen
US7804760B2 (en) * 2003-08-07 2010-09-28 Quellan, Inc. Method and system for signal emulation
JP2007502054A (ja) * 2003-08-07 2007-02-01 ケラン インコーポレイテッド クロストークキャンセルのための方法とシステム
US7215893B2 (en) * 2003-08-28 2007-05-08 The Boeing Company RF photonics residual error correction
ATE488068T1 (de) * 2003-11-17 2010-11-15 Quellan Inc Verfahren und system zur löschung von antennenstörungen
US7616700B2 (en) 2003-12-22 2009-11-10 Quellan, Inc. Method and system for slicing a communication signal
US7844186B2 (en) * 2004-02-20 2010-11-30 Alcatel-Lucent Usa Inc. Method and apparatus for optical transmission
US7725079B2 (en) * 2004-12-14 2010-05-25 Quellan, Inc. Method and system for automatic control in an interference cancellation device
US7522883B2 (en) 2004-12-14 2009-04-21 Quellan, Inc. Method and system for reducing signal interference
US7362445B2 (en) * 2005-06-17 2008-04-22 Agilent Technologies, Inc. Active control and detection of two nearly orthogonal polarizations in a fiber for heterodyne interferometry
DE112007001045B4 (de) 2006-04-26 2019-05-16 Intersil Americas LLC Verfahren und System zur Reduzierung von Strahlungs-Emissionen aus einem Kommunikationskanal
US20090214224A1 (en) * 2007-04-03 2009-08-27 Celight, Inc. Method and apparatus for coherent analog rf photonic transmission
JP5034770B2 (ja) * 2007-08-16 2012-09-26 富士通株式会社 コヒーレント光受信器および光通信システム
EP2086130B1 (de) 2008-01-29 2013-01-09 Alcatel Lucent Kombinierte Phasen- und Polarisationsmodulation für optische Kommunikationen
US8238759B2 (en) * 2008-02-14 2012-08-07 Infinera Corporation High capacity transmitter implemented on a photonic integrated circuit
EP2169867B1 (de) 2008-09-24 2013-03-27 Alcatel Lucent Entscheidungsausgerichteter Algorithmus zum Einstellen eines Polarisationsdemultiplexers in einem kohärenten optischen Detektionsempfänger
US20100158521A1 (en) * 2008-12-18 2010-06-24 Alcatel-Lucent Usa Inc. Optical mixer for coherent detection of polarization-multiplexed signals
MY167202A (en) 2009-03-20 2018-08-13 Alcatel Lucent Coherent optical detector having a multifunctional waveguide grating
US8494315B2 (en) * 2009-12-17 2013-07-23 Alcatel Lucent Photonic integrated circuit having a waveguide-grating coupler
US8488979B2 (en) * 2009-12-23 2013-07-16 Fujitsu Limited Multi-level polarization multi-level phase modulator
JP5549333B2 (ja) * 2010-04-07 2014-07-16 富士通株式会社 偏波変動補償装置および光通信システム
US8761614B2 (en) * 2011-06-14 2014-06-24 Ciena Corporation Parallel conversion between optical and digital
US9461751B2 (en) 2012-12-18 2016-10-04 Ciena Corporation Frequency domain multiplex optical transmission
US9647426B1 (en) 2013-06-28 2017-05-09 Aurrion, Inc. Polarization insensitive colorless optical devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752992A (en) * 1969-05-28 1973-08-14 Us Navy Optical communication system
US4436376A (en) * 1980-02-13 1984-03-13 Fergason James L Light modulator, demodulator and method of communication employing the same
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system
GB8630959D0 (en) * 1986-12-29 1987-02-04 British Telecomm Optical polarisation control
DE3884234D1 (de) * 1987-02-27 1993-10-28 Siemens Ag Optischer Polarisations-Diversitäts-Empfänger.
US5008958A (en) * 1988-01-19 1991-04-16 At&T Bell Laboratories Polarization-insensitive technique for coherent optical communication

Also Published As

Publication number Publication date
WO1991018455A1 (en) 1991-11-28
US5416628A (en) 1995-05-16
DE69104199D1 (de) 1994-10-27
EP0527966A1 (de) 1993-02-24
EP0527966B1 (de) 1994-09-21
IT9047949A0 (it) 1990-05-11
IT1239609B (it) 1993-11-11
IT9047949A1 (it) 1991-11-11

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