WO2009004682A1 - 光受信回路 - Google Patents

光受信回路 Download PDF

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Publication number
WO2009004682A1
WO2009004682A1 PCT/JP2007/063121 JP2007063121W WO2009004682A1 WO 2009004682 A1 WO2009004682 A1 WO 2009004682A1 JP 2007063121 W JP2007063121 W JP 2007063121W WO 2009004682 A1 WO2009004682 A1 WO 2009004682A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase
wavelength
positive
negative
signal
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.)
Ceased
Application number
PCT/JP2007/063121
Other languages
English (en)
French (fr)
Inventor
Koji Terada
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
Priority to JP2009521438A priority Critical patent/JP4894924B2/ja
Priority to PCT/JP2007/063121 priority patent/WO2009004682A1/ja
Publication of WO2009004682A1 publication Critical patent/WO2009004682A1/ja
Priority to US12/637,082 priority patent/US8184994B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/691—Arrangements for optimizing the photodetector in the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

　光受信回路（１００）は、位相変調および波長多重がなされた光信号を受信して復調する光受信回路である。デモジュレータ（１１０）は、位相比較のための基準信号と受信した光信号とを干渉させて正相信号および逆相信号として出力する。波長分波部（１２０）は、デモジュレータ（１１０）によって出力される正相信号および逆相信号が互いに隣接して入力される複数の入力ポートおよび複数の出力ポートを有し、入力された正相信号および逆相信号を波長毎に分波し、分波した正相信号および逆相信号を波長毎に互いに隣接させた状態で出力する。バランスドレシーバ（１３０）は、波長毎に対応して設けられ、波長分波部（１２０）の出力のうちそれぞれ対応する波長の正相信号および逆相信号をバランス受信して復調を行う。
PCT/JP2007/063121 2007-06-29 2007-06-29 光受信回路 Ceased WO2009004682A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009521438A JP4894924B2 (ja) 2007-06-29 2007-06-29 光受信回路
PCT/JP2007/063121 WO2009004682A1 (ja) 2007-06-29 2007-06-29 光受信回路
US12/637,082 US8184994B2 (en) 2007-06-29 2009-12-14 Optical receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063121 WO2009004682A1 (ja) 2007-06-29 2007-06-29 光受信回路

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/637,082 Continuation US8184994B2 (en) 2007-06-29 2009-12-14 Optical receiving circuit

Publications (1)

Publication Number Publication Date
WO2009004682A1 true WO2009004682A1 (ja) 2009-01-08

Family

ID=40225752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063121 Ceased WO2009004682A1 (ja) 2007-06-29 2007-06-29 光受信回路

Country Status (3)

Country Link
US (1) US8184994B2 (ja)
JP (1) JP4894924B2 (ja)
WO (1) WO2009004682A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015510314A (ja) * 2012-01-09 2015-04-02 アルカテル−ルーセント 二重偏光多重波長コヒーレント受信機フロントエンド
WO2019004040A1 (ja) * 2017-06-27 2019-01-03 日本電信電話株式会社 光送信機、光受信機及び光伝送システム
EP2465218B1 (en) * 2009-08-14 2019-01-23 Alcatel Lucent Coherent receiver having an interleave-chirped arrayed waveguide grating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11102426B1 (en) * 2018-05-18 2021-08-24 Lockheed Martin Corporation Photonic integrated circuit for heterodyne imaging
US20250096903A1 (en) * 2023-09-18 2025-03-20 Nokia Solutions And Networks Oy Direct detection based passive optical network using dual-polarization communications

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2005065273A (ja) * 2003-08-13 2005-03-10 Lucent Technol Inc Ｐｍｄ／ｐｄｌ／ｐｄｇの多重チャネル緩和のシステムと方法
JP2005295559A (ja) * 2004-03-31 2005-10-20 Lucent Technol Inc Ｐｍｄ／ｐｄｌ／ｐｄｇ軽減のための方法および装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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JP2005094287A (ja) 2003-09-17 2005-04-07 Kddi Corp 光伝送方法及びシステム並びに光送信方法及び装置
JP4376647B2 (ja) * 2004-02-03 2009-12-02 日本電信電話株式会社 波長ルータ及び光波長多重伝送システム
US7489874B2 (en) 2005-02-28 2009-02-10 Alcatel-Lucent Usa Inc. Method and apparatus for demodulation of optical differential phase shift keyed signals
US8639114B2 (en) 2005-06-28 2014-01-28 Nec Corporation DPSK modulation-demodulation method, and optical communication device and optical communication system using the same
US8320779B2 (en) * 2005-10-05 2012-11-27 Nec Corporation Light receiver, optical communication system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005065273A (ja) * 2003-08-13 2005-03-10 Lucent Technol Inc Ｐｍｄ／ｐｄｌ／ｐｄｇの多重チャネル緩和のシステムと方法
JP2005295559A (ja) * 2004-03-31 2005-10-20 Lucent Technol Inc Ｐｍｄ／ｐｄｌ／ｐｄｇ軽減のための方法および装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DAIKOKU M. ET AL.: "Performance comparison of modulation formats for 40 Gbit/s DWDM transmission systems", OPTICAL FIBER COMMUNICATION CONFERENCE, TECHNICAL DIGEST, OFC/NFOEC, vol. 5, 6 March 2005 (2005-03-06) - 11 March 2005 (2005-03-11), pages 1 - 3, XP003024130 *
SERBAY M. ET AL.: "Comparison of six different RZ-DQPSK transmitter set-ups regarding their tolerance towards fibre impairments in 8x40Gb/s WDM-systems", ADVANCED MODULATION FORMATS, IEEE/LEOS WORKSHOP, 1 July 2004 (2004-07-01) - 2 July 2004 (2004-07-02), pages 9 - 10, XP010715409 *
YOSHIKANE N. AND MORITA I.: "1.14 b/s/Hz spectrally-efficient 50/spl times/85.4 Gb/s transmission over 300 km using copolarized CS-RZ DQPSK signals", OPTICAL FIBER COMMUNICATION CONFERENCE, OFC 2004, vol. 2, 23 February 2004 (2004-02-23) - 27 February 2004 (2004-02-27), pages 3, XP010745986 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2465218B1 (en) * 2009-08-14 2019-01-23 Alcatel Lucent Coherent receiver having an interleave-chirped arrayed waveguide grating
JP2015510314A (ja) * 2012-01-09 2015-04-02 アルカテル−ルーセント 二重偏光多重波長コヒーレント受信機フロントエンド
US9374185B2 (en) 2012-01-09 2016-06-21 Alcatel Lucent Dual-polarization multi-wavelength coherent receiver frontend
WO2019004040A1 (ja) * 2017-06-27 2019-01-03 日本電信電話株式会社 光送信機、光受信機及び光伝送システム
US10951344B2 (en) 2017-06-27 2021-03-16 Nippon Telegraph And Telephone Corporation Optical transmitter, optical receiver, and optical transmission system

Also Published As

Publication number Publication date
JP4894924B2 (ja) 2012-03-14
US20100119230A1 (en) 2010-05-13
US8184994B2 (en) 2012-05-22
JPWO2009004682A1 (ja) 2010-08-26

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