DE69124301D1 - Demodulator und Polarisationsdiversitätempfänger für kohärente optische Übertragung mit dem Demodulator - Google Patents

Demodulator und Polarisationsdiversitätempfänger für kohärente optische Übertragung mit dem Demodulator

Info

Publication number
DE69124301D1
DE69124301D1 DE69124301T DE69124301T DE69124301D1 DE 69124301 D1 DE69124301 D1 DE 69124301D1 DE 69124301 T DE69124301 T DE 69124301T DE 69124301 T DE69124301 T DE 69124301T DE 69124301 D1 DE69124301 D1 DE 69124301D1
Authority
DE
Germany
Prior art keywords
demodulator
optical transmission
coherent optical
diversity receiver
polarization diversity
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.)
Expired - Fee Related
Application number
DE69124301T
Other languages
English (en)
Other versions
DE69124301T2 (de
Inventor
Takao Naito
Terumi Chikama
Shigeki Watanabe
Tetsuya Kiyonaga
Hiroshi Nakamoto
George Ishikawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69124301D1 publication Critical patent/DE69124301D1/de
Publication of DE69124301T2 publication Critical patent/DE69124301T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [IF] is obtained

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Transmission System (AREA)
DE69124301T 1990-07-18 1991-07-18 Demodulator und Polarisationsdiversitätempfänger für kohärente optische Übertragung mit dem Demodulator Expired - Fee Related DE69124301T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2187997A JP2820511B2 (ja) 1990-07-18 1990-07-18 コヒーレント光通信用偏波ダイバーシティ受信装置

Publications (2)

Publication Number Publication Date
DE69124301D1 true DE69124301D1 (de) 1997-03-06
DE69124301T2 DE69124301T2 (de) 1997-06-05

Family

ID=16215830

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124301T Expired - Fee Related DE69124301T2 (de) 1990-07-18 1991-07-18 Demodulator und Polarisationsdiversitätempfänger für kohärente optische Übertragung mit dem Demodulator

Country Status (5)

Country Link
US (1) US5253097A (de)
EP (1) EP0467358B1 (de)
JP (1) JP2820511B2 (de)
CA (1) CA2047284C (de)
DE (1) DE69124301T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2982567B2 (ja) * 1993-07-20 1999-11-22 松下電器産業株式会社 受信装置
US5574589A (en) * 1995-01-09 1996-11-12 Lucent Technologies Inc. Self-amplified networks
US5907421A (en) * 1996-03-20 1999-05-25 The Trustees Of Princeton University Apparatus for spectral encoding and decoding of femtosecond optical pulses
DE19961123A1 (de) * 1999-12-17 2001-07-05 Infineon Technologies Ag Verfahren zum Schätzen des Frequenzversatzes eines CPFSK-Signals
JP2002185490A (ja) * 2000-12-19 2002-06-28 Denso Corp 通信システム及び端末装置
US6407848B1 (en) 2000-12-27 2002-06-18 All Optical Networks, Inc. Servo-stabilized-phase, differential coherence detector
US6473222B2 (en) 2000-12-27 2002-10-29 John N. Hait Hyper-heterodyning, expanded bandpass apparatus and method
US20040208646A1 (en) * 2002-01-18 2004-10-21 Seemant Choudhary System and method for multi-level phase modulated communication
US7343104B2 (en) * 2004-06-23 2008-03-11 Lucent Technologies Inc. Apparatus and method for receiving a quadrature differential phase shift key modulated optical pulsetrain
US8687981B2 (en) * 2007-10-02 2014-04-01 Luxtera, Inc. Method and system for split voltage domain transmitter circuits
WO2012140922A1 (ja) * 2011-04-15 2012-10-18 日本電気株式会社 コヒーレント受信器
WO2012144108A1 (ja) * 2011-04-21 2012-10-26 日本電気株式会社 光受信方法および光受信機
EP2608426A1 (de) * 2011-12-21 2013-06-26 Nokia Siemens Networks Oy Verfahren und Vorrichtung zum Bestimmen der Polarisationstrennung in einem heterodynen Kohärenzempfängers
CN103379069B (zh) * 2012-04-13 2016-10-05 菲尼萨公司 无热dqpsk和/或dpsk解调器
JP6079125B2 (ja) * 2012-10-19 2017-02-15 日本電気株式会社 光伝送システム及び光伝送方法
US9337937B2 (en) 2014-03-10 2016-05-10 Cisco Technology, Inc. Common mode rejection ratio control for coherent optical receivers
EP3334066B1 (de) * 2015-08-27 2019-10-09 Huawei Technologies Co., Ltd. Optisches signalverarbeitungsverfahren und kohärenter empfänger
US20180006729A1 (en) * 2016-06-30 2018-01-04 Sumitomo Electric Device Innovations, Inc. Process of assembling coherent optical receiver
US20180254832A1 (en) * 2017-03-01 2018-09-06 Fujitsu Limited Optical reception device, optical modulator and optical modulation method
US11196594B2 (en) * 2019-02-28 2021-12-07 Nokia Solutions And Networks Oy Probabilistic signal shaping using multiple codebooks
US20230198630A1 (en) * 2020-06-08 2023-06-22 Nippon Telegraph And Telephone Corporation Optical receiving device and optical receiving method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5634202A (en) * 1979-08-29 1981-04-06 Nec Corp Fm demodulating circuit
US4397042A (en) * 1981-07-22 1983-08-02 Sumitomo Electric Industries, Ltd. Optical modulation/demodulation system
FR2536610A1 (fr) * 1982-11-23 1984-05-25 Cit Alcatel Equipement de transmission synchrone de donnees
US4547738A (en) * 1983-06-10 1985-10-15 American Standard Inc. Phase shift demodulator
JPS62181556A (ja) * 1986-02-05 1987-08-08 Nec Corp デイジタル変復調回路
US4804925A (en) * 1986-03-26 1989-02-14 Fuji Photo Film Co., Ltd. DPSK exclusive-OR demodulator
DE3887409T2 (de) * 1987-08-29 1994-06-30 Fujitsu Ltd FSK-Demodulationsschaltung.

Also Published As

Publication number Publication date
JPH0478251A (ja) 1992-03-12
EP0467358A3 (en) 1993-01-13
JP2820511B2 (ja) 1998-11-05
EP0467358A2 (de) 1992-01-22
CA2047284C (en) 1995-07-11
DE69124301T2 (de) 1997-06-05
CA2047284A1 (en) 1992-01-19
EP0467358B1 (de) 1997-01-22
US5253097A (en) 1993-10-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee