JPWO2021240695A1 - - Google Patents

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Publication number
JPWO2021240695A1
JPWO2021240695A1 JP2022527366A JP2022527366A JPWO2021240695A1 JP WO2021240695 A1 JPWO2021240695 A1 JP WO2021240695A1 JP 2022527366 A JP2022527366 A JP 2022527366A JP 2022527366 A JP2022527366 A JP 2022527366A JP WO2021240695 A1 JPWO2021240695 A1 JP WO2021240695A1
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JP
Japan
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Application number
JP2022527366A
Other versions
JP7481645B2 (ja
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.)
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Publication of JPWO2021240695A1 publication Critical patent/JPWO2021240695A1/ja
Application granted granted Critical
Publication of JP7481645B2 publication Critical patent/JP7481645B2/ja
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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
    • H04B10/612—Coherent receivers for optical signals modulated with a format different from binary or higher-order PSK [X-PSK], e.g. QAM, DPSK, FSK, MSK, ASK
    • 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
    • H04B10/613—Coherent receivers including phase diversity, e.g., having in-phase and quadrature branches, as in QPSK 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
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6164—Estimation or correction of the frequency offset between the received optical signal and the optical local oscillator
    • 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
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction
    • 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
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
JP2022527366A 2020-05-27 2020-05-27 光受信装置及びクロック同期方法 Active JP7481645B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/020971 WO2021240695A1 (ja) 2020-05-27 2020-05-27 光受信装置及びクロック同期方法

Publications (2)

Publication Number Publication Date
JPWO2021240695A1 true JPWO2021240695A1 (ja) 2021-12-02
JP7481645B2 JP7481645B2 (ja) 2024-05-13

Family

ID=78723134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022527366A Active JP7481645B2 (ja) 2020-05-27 2020-05-27 光受信装置及びクロック同期方法

Country Status (3)

Country Link
US (1) US12021567B2 (ja)
JP (1) JP7481645B2 (ja)
WO (1) WO2021240695A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7147495B2 (ja) * 2018-11-14 2022-10-05 日本電信電話株式会社 復旧支援装置、復旧支援方法及びプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009060309A (ja) * 2007-08-31 2009-03-19 National Institute Of Information & Communication Technology コヒーレント光受信装置
JP2011199657A (ja) * 2010-03-19 2011-10-06 National Institute Of Information & Communication Technology 光ｍｓｋ変調／任意偏移量ｃｐｆｓｋの光サンプリング復調方法
JP2019047399A (ja) * 2017-09-05 2019-03-22 日本電信電話株式会社 光受信器及び周波数ずれ量補償方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7522841B2 (en) * 2005-10-21 2009-04-21 Nortel Networks Limited Efficient data transmission and training of data processing functions
WO2008025149A1 (en) * 2006-08-31 2008-03-06 The Governors Of The University Of Alberta Decision-feedback detection for block differential space-time modulation
US8275055B2 (en) * 2007-11-20 2012-09-25 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Receiver for differentially modulated multicarrier signals
JP5444877B2 (ja) * 2009-06-24 2014-03-19 富士通株式会社 デジタルコヒーレント受信器
JP5445260B2 (ja) * 2010-03-19 2014-03-19 富士通株式会社 デジタルコヒーレント受信器およびデジタルコヒーレント受信方法
EP2495893B1 (en) * 2011-03-04 2016-12-07 Karlsruher Institut für Technologie Optical detector for detecting optical signal beams, method to detect optical signals, and use of an optical detector to detect optical signals
US10038507B2 (en) * 2013-02-13 2018-07-31 Nippon Telegraph And Telephone Corporation Optical transmission system, phase compensation method, and optical reception apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009060309A (ja) * 2007-08-31 2009-03-19 National Institute Of Information & Communication Technology コヒーレント光受信装置
JP2011199657A (ja) * 2010-03-19 2011-10-06 National Institute Of Information & Communication Technology 光ｍｓｋ変調／任意偏移量ｃｐｆｓｋの光サンプリング復調方法
JP2019047399A (ja) * 2017-09-05 2019-03-22 日本電信電話株式会社 光受信器及び周波数ずれ量補償方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GARDNER F. M.: "A BPSK/QPSK Timing-Error Detector for Sampled Receivers", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 34, no. 5, JPN6020043077, May 1986 (1986-05-01), US, pages 423 - 429, XP000608506, ISSN: 0005212294, DOI: 10.1109/TCOM.1986.1096561 *
KANAI T. ET AL.: "Wide-Range Frequency Offset Compensation for CPFSK used as TDM-Based Digital Coherent PON’s Upstrea", 2018 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC), JPN6020043079, September 2018 (2018-09-01), ISSN: 0005212295 *

Also Published As

Publication number Publication date
JP7481645B2 (ja) 2024-05-13
WO2021240695A1 (ja) 2021-12-02
US12021567B2 (en) 2024-06-25
US20230208528A1 (en) 2023-06-29

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