ATE333726T1 - Modifiziertes dpsk optisches übertragungssystem - Google Patents

Modifiziertes dpsk optisches übertragungssystem

Info

Publication number
ATE333726T1
ATE333726T1 AT03292928T AT03292928T ATE333726T1 AT E333726 T1 ATE333726 T1 AT E333726T1 AT 03292928 T AT03292928 T AT 03292928T AT 03292928 T AT03292928 T AT 03292928T AT E333726 T1 ATE333726 T1 AT E333726T1
Authority
AT
Austria
Prior art keywords
transmission system
optical transmission
diffential
dpsk optical
modified
Prior art date
Application number
AT03292928T
Other languages
English (en)
Inventor
Hans Bissessur
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Application granted granted Critical
Publication of ATE333726T1 publication Critical patent/ATE333726T1/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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5055—Laser transmitters using external modulation using a pre-coder
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
AT03292928T 2003-11-25 2003-11-25 Modifiziertes dpsk optisches übertragungssystem ATE333726T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03292928A EP1536579B1 (de) 2003-11-25 2003-11-25 Modifiziertes DPSK optisches Übertragungssystem

Publications (1)

Publication Number Publication Date
ATE333726T1 true ATE333726T1 (de) 2006-08-15

Family

ID=34443089

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03292928T ATE333726T1 (de) 2003-11-25 2003-11-25 Modifiziertes dpsk optisches übertragungssystem

Country Status (4)

Country Link
US (1) US20050111855A1 (de)
EP (1) EP1536579B1 (de)
AT (1) ATE333726T1 (de)
DE (1) DE60306939T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2383424B (en) * 2001-11-30 2004-12-22 Marconi Optical Components Ltd Photonic integrated device
US7389055B1 (en) * 2005-03-17 2008-06-17 Nortel Networks Limited DQPSK receiver phase control
JP4922594B2 (ja) 2005-05-23 2012-04-25 富士通株式会社 光送信装置、光受信装置、およびそれらを含む光通信システム
US7817924B2 (en) * 2006-03-24 2010-10-19 The Mitre Corporation Rate adjustable differential phase shift key (DPSK) modulation
JP4915147B2 (ja) * 2006-06-15 2012-04-11 富士通株式会社 位相制御装置および光ｄｑｐｓｋ受信機
US11018778B1 (en) * 2020-05-20 2021-05-25 Verizon Patent And Licensing Inc. System and method to prevent unauthorized voice detection via fiber links
CN115695124B (zh) * 2023-01-05 2023-03-17 成都玖锦科技有限公司 一种uqpsk相干解调方法和系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6388786B1 (en) * 1997-08-15 2002-05-14 Nec Corporation Method for generating duobinary signal and optical transmitter using the same method
US6271950B1 (en) * 1998-08-18 2001-08-07 Lucent Technologies Inc. Optical differential phase shift keying transmission system having multiplexing, routing and add/replace capabilities
US6594055B2 (en) * 2001-01-17 2003-07-15 Oyster Optics, Inc. Secure fiber optic telecommunications system and method
ITRM20020056A1 (it) * 2002-02-04 2003-08-04 Mario Zitelli Modulazione combinata di intensita' e fase in un sistema di comunicazione ottico.
AU2003223687A1 (en) * 2002-04-23 2003-11-10 Quellan, Inc. Combined ask/dpsk modulation system
US20050069330A1 (en) * 2003-09-29 2005-03-31 Yuan-Hua Kao System and method for optical transmission

Also Published As

Publication number Publication date
DE60306939T2 (de) 2007-01-04
DE60306939D1 (de) 2006-08-31
EP1536579A1 (de) 2005-06-01
US20050111855A1 (en) 2005-05-26
EP1536579B1 (de) 2006-07-19

Similar Documents

Publication Publication Date Title
AU2003219395A1 (en) Backward compatible dvb-s standard transmission system
EP1128580A3 (de) Optisches Übertragungsverfahren, optischer Sender, optischer Empfänger und optisches Übertragungssystem
EP1041783A3 (de) Kodierung, Modulation und Multiplexierung für optische Übertragung
WO2002051041A3 (en) Improvements in, or relating to, optical communications
KR960701544A (ko) 다중-변조 통신 시스템(multiple-modulation communication system)
KR880012036A (ko) 분주 멀티플렉싱 광파 통신 시스템용 송수신기 및 그의 신호 전송방법
EP0782283A3 (de) Optisches Übertragungsgerät für optische Digitalübertragung mit Polarisationsverwürfelung
EP0964538A3 (de) Optischer sender und optisches Übertragungssystem mit Polarisationsmodulation
EP1304820A4 (de) Optischer sender und faseroptisches übertragungssystem damit
EP1536574A3 (de) Verfahren zum Erhöhen der Leistung zweitrangiger Daten in einem hierarchischen Modulationsverfahren
ATE333726T1 (de) Modifiziertes dpsk optisches übertragungssystem
EA200300197A1 (ru) Способ передачи информации с помощью хаотических сигналов
DE602004003488D1 (de) Bandbegrenztes FSK Modulationsverfahren
WO2005055443A3 (en) Method to optimize hierarchical modulation for a diversity system
WO2009017771A3 (en) Optical interconnect
DE60215399D1 (de) Phasenmoduliertes faseroptisches Telekommunikationssystem
JP2005269648A (ja) 偏光変調器を用いた光デュオバイナリー伝送装置
ATE317212T1 (de) Nachrichtenübertragungssystem
ATE539509T1 (de) Empfänger mit paritätsdekodierung
GB0308701D0 (en) Forming multi-carrier signals
DE60106860D1 (de) Modulierungsschema und Übertragungssystem für NRZ-Signale mit links- und rechtsseitiger Filterung
GB2379590A (en) Optical transmitter and code converting circuit used therefor
AU2002314351A1 (en) Modulation scheme for tetra systems
ATE260521T1 (de) Wellenformgenerator zur verwendung in quadraturmodulation (i/q)
WO2002061986A3 (en) Fiber optic communications using optical single side band transmission and direct detection

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties