CA2019178A1 - Systeme et methode de modulation directe par deplacement de phase - Google Patents

Systeme et methode de modulation directe par deplacement de phase

Info

Publication number
CA2019178A1
CA2019178A1 CA2019178A CA2019178A CA2019178A1 CA 2019178 A1 CA2019178 A1 CA 2019178A1 CA 2019178 A CA2019178 A CA 2019178A CA 2019178 A CA2019178 A CA 2019178A CA 2019178 A1 CA2019178 A1 CA 2019178A1
Authority
CA
Canada
Prior art keywords
direct modulation
laser diode
shift
dpsk
modulation phase
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.)
Granted
Application number
CA2019178A
Other languages
English (en)
Other versions
CA2019178C (fr
Inventor
Takao Naito
Terumi Chikama
Shigeki Watanabe
Tetsuya Kiyonaga
Hiroshi Onaka
Yoshihito Onoda
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
Publication of CA2019178A1 publication Critical patent/CA2019178A1/fr
Application granted granted Critical
Publication of CA2019178C publication Critical patent/CA2019178C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
    • 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
    • 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/504—Laser transmitters using direct 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5561—Digital phase 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2096—Arrangements for directly or externally modulating an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/223—Demodulation in the optical domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA002019178A 1989-06-19 1990-06-18 Systeme et methode de modulation directe par deplacement de phase Expired - Fee Related CA2019178C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1154664A JP2758211B2 (ja) 1989-06-19 1989-06-19 周波数直接変調ｐｓｋ方式
JP01-154664 1989-06-19

Publications (2)

Publication Number Publication Date
CA2019178A1 true CA2019178A1 (fr) 1990-12-19
CA2019178C CA2019178C (fr) 1994-05-24

Family

ID=15589193

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019178A Expired - Fee Related CA2019178C (fr) 1989-06-19 1990-06-18 Systeme et methode de modulation directe par deplacement de phase

Country Status (5)

Country Link
US (1) US5050176A (fr)
EP (1) EP0404054B1 (fr)
JP (1) JP2758211B2 (fr)
CA (1) CA2019178C (fr)
DE (1) DE69031787T2 (fr)

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* Cited by examiner, † Cited by third party
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JPH0478235A (ja) * 1990-07-18 1992-03-12 Fujitsu Ltd 直接変調ｐｓｋ伝送システム並びに該システムにおける自動周波数制御方法、復調方法及び位相雑音抑圧方法
US5200964A (en) * 1991-03-12 1993-04-06 General Instrument Corporation Broad linewidth lasers for optical fiber communication systems
JPH05227103A (ja) * 1991-11-14 1993-09-03 Nec Corp 光通信方法
JPH06178612A (ja) * 1992-10-12 1994-06-28 Hideji Kiyohara 植芝用造成土壌構造
US5574589A (en) * 1995-01-09 1996-11-12 Lucent Technologies Inc. Self-amplified networks
US20040161245A1 (en) * 1996-12-20 2004-08-19 Bergano Neal S. Synchronous amplitude modulation for improved performance of optical transmission systems
US6556326B2 (en) * 1996-12-20 2003-04-29 Tyco Telecommunications (Us) Inc. Synchronous amplitude modulation for improved performance of optical transmission systems
WO2001056196A1 (fr) * 2000-01-26 2001-08-02 Lockheed Martin Corporation Utilisation de signalisation optique coherente par decalage de phase dans des liaisons de fibres optiques multiplexees en longueur d'ondes
GB2370473B (en) 2000-12-21 2004-04-07 Marconi Caswell Ltd Improvements in or relating to optical communication
US6798557B1 (en) * 2003-05-22 2004-09-28 Lucent Technologies Inc. Direct optical N-state phase shift keying
US7535656B2 (en) * 2005-06-15 2009-05-19 Daylight Solutions, Inc. Lenses, optical sources, and their couplings
US7492806B2 (en) * 2005-06-15 2009-02-17 Daylight Solutions, Inc. Compact mid-IR laser
US20100243891A1 (en) * 2005-06-15 2010-09-30 Timothy Day Compact mid-ir laser
KR100993843B1 (ko) * 2006-04-06 2010-11-12 피니사 코포레이숀 진보된 변조포맷의 생성을 위한 다용도의 컴팩트한 송신기
US7424042B2 (en) * 2006-09-22 2008-09-09 Daylight Solutions, Inc. Extended tuning in external cavity quantum cascade lasers
US7848382B2 (en) 2008-01-17 2010-12-07 Daylight Solutions, Inc. Laser source that generates a plurality of alternative wavelength output beams
US8774244B2 (en) 2009-04-21 2014-07-08 Daylight Solutions, Inc. Thermal pointer
US8718105B2 (en) * 2010-03-15 2014-05-06 Daylight Solutions, Inc. Laser source that generates a rapidly changing output beam
US8335413B2 (en) 2010-05-14 2012-12-18 Daylight Solutions, Inc. Optical switch
WO2012006346A1 (fr) 2010-07-07 2012-01-12 Daylight Solutions, Inc. Ensemble source laser de forte puissance à longueurs d'onde multiples à faisceau de sortie de précision
US8467430B2 (en) 2010-09-23 2013-06-18 Daylight Solutions, Inc. Continuous wavelength tunable laser source with optimum orientation of grating and gain medium
US9225148B2 (en) 2010-09-23 2015-12-29 Daylight Solutions, Inc. Laser source assembly with thermal control and mechanically stable mounting
US9042688B2 (en) 2011-01-26 2015-05-26 Daylight Solutions, Inc. Multiple port, multiple state optical switch
JP2014036059A (ja) * 2012-08-07 2014-02-24 Nippon Telegr & Teleph Corp <Ntt> 光周波数変調信号発生器
WO2015038415A1 (fr) 2013-09-13 2015-03-19 Corning Optical Communications LLC Procédés, circuits et ensembles de câble optique pour la transmission optique de données à haute vitesse et de données à basse vitesse
TWI691187B (zh) * 2014-08-21 2020-04-11 日商新力股份有限公司 信號處理裝置及方法
CN106130644B (zh) * 2016-07-20 2018-04-03 上海交通大学 基于色散过补偿的频域均衡方法
ES2679403B1 (es) * 2017-02-24 2019-05-10 Univ Catalunya Politecnica Receptor heterodino independiente de la polarizacion para senales opticas moduladas en fase y codificadas diferencialmente
JP6767310B2 (ja) * 2017-05-26 2020-10-14 日本電信電話株式会社 光送受信システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235543A (ja) * 1984-05-08 1985-11-22 Nec Corp 光位相変調方法
JPS6448480A (en) * 1987-08-19 1989-02-22 Fujitsu Ltd Semiconductor laser modulation control system
DE68924747T2 (de) * 1988-03-04 1996-05-02 Fujitsu Ltd Vorrichtung und verfahren zur modulierung eines halbleiterlasers.

Also Published As

Publication number Publication date
US5050176A (en) 1991-09-17
EP0404054A3 (fr) 1992-01-08
JPH0321126A (ja) 1991-01-29
DE69031787D1 (de) 1998-01-22
DE69031787T2 (de) 1998-04-23
EP0404054A2 (fr) 1990-12-27
JP2758211B2 (ja) 1998-05-28
CA2019178C (fr) 1994-05-24
EP0404054B1 (fr) 1997-12-10

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