IT1189657B - Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina - Google Patents

Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina

Info

Publication number
IT1189657B
IT1189657B IT67291/86A IT6729186A IT1189657B IT 1189657 B IT1189657 B IT 1189657B IT 67291/86 A IT67291/86 A IT 67291/86A IT 6729186 A IT6729186 A IT 6729186A IT 1189657 B IT1189657 B IT 1189657B
Authority
IT
Italy
Prior art keywords
heterodine
coherent
detection
transmission system
fiber optic
Prior art date
Application number
IT67291/86A
Other languages
English (en)
Other versions
IT8667291A0 (it
Inventor
Riccardo Calvani
Renato Caponi
Franco Cisternino
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT67291/86A priority Critical patent/IT1189657B/it
Publication of IT8667291A0 publication Critical patent/IT8667291A0/it
Priority to US07/035,623 priority patent/US4817206A/en
Priority to CA000534179A priority patent/CA1250897A/en
Priority to JP62084943A priority patent/JP2577905B2/ja
Priority to DE8787105290T priority patent/DE3770972D1/de
Priority to EP87105290A priority patent/EP0241039B1/en
Priority to DE198787105290T priority patent/DE241039T1/de
Application granted granted Critical
Publication of IT1189657B publication Critical patent/IT1189657B/it

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
    • H04B10/516—Details of coding or modulation
    • H04B10/532—Polarisation modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
IT67291/86A 1986-04-10 1986-04-10 Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina IT1189657B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT67291/86A IT1189657B (it) 1986-04-10 1986-04-10 Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina
US07/035,623 US4817206A (en) 1986-04-10 1987-04-03 Optical-fiber transmission system with polarization modulation and heterodyne coherent detection
CA000534179A CA1250897A (en) 1986-04-10 1987-04-08 Optical fibre transmission system with polarization modulation and heterodyne coherent detection
JP62084943A JP2577905B2 (ja) 1986-04-10 1987-04-08 偏光変調及びヘテロダインコヒレント検波を有する光学的−フアイバ−伝送システム
DE8787105290T DE3770972D1 (de) 1986-04-10 1987-04-09 Lichtwellenleiter-uebertragungssystem mit polarisationsmodulation und kohaerenter ueberlagerungsdetektion.
EP87105290A EP0241039B1 (en) 1986-04-10 1987-04-09 Optical-fibre transmission system with polarization modulation and heterodyne coherent detection
DE198787105290T DE241039T1 (de) 1986-04-10 1987-04-09 Lichtwellenleiter-uebertragungssystem mit polarisationsmodulation und kohaerenter ueberlagerungsdetektion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67291/86A IT1189657B (it) 1986-04-10 1986-04-10 Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina

Publications (2)

Publication Number Publication Date
IT8667291A0 IT8667291A0 (it) 1986-04-10
IT1189657B true IT1189657B (it) 1988-02-04

Family

ID=11301197

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67291/86A IT1189657B (it) 1986-04-10 1986-04-10 Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina

Country Status (6)

Country Link
US (1) US4817206A (it)
EP (1) EP0241039B1 (it)
JP (1) JP2577905B2 (it)
CA (1) CA1250897A (it)
DE (2) DE241039T1 (it)
IT (1) IT1189657B (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system
DE58908768D1 (de) * 1988-09-30 1995-01-26 Siemens Ag Verfahren zum synchronisierten Umtasten eines Polarisationszustandes eines optischen Sendesignals eines optischen Übertragungssystems mit Überlagerungsempfang und Vorrichtung zur Durchführung des Verfahrens.
US4998295A (en) * 1988-12-30 1991-03-05 General Electric Company Receiver having an interferometer
US5048120A (en) * 1989-08-28 1991-09-10 Siemens Aktiengesellschaft Arrangement for the generation of an FSK-modulated optical signal having two polarization states that are orthogonal to one another from an FSK-modulated optical transmitted signal
US5287212A (en) * 1989-09-07 1994-02-15 Cox Charles H Optical link
US5007106A (en) * 1989-11-08 1991-04-09 At&T Bell Laboratories Optical Homodyne Receiver
US5267074A (en) * 1990-01-22 1993-11-30 U.S. Philips Corporation Coherent optical heterodyne transmission system
US5258615A (en) * 1990-08-03 1993-11-02 Gpt Limited Optical fiber monitoring by detection of polarization variations
GB9017077D0 (en) * 1990-08-03 1990-09-19 Plessey Telecomm Optical fibre monitoring
JPH04150628A (ja) * 1990-10-15 1992-05-25 Nec Corp 光通信システムの波長安定化方法および回路
US5136666A (en) * 1991-08-06 1992-08-04 The University Of Colorado Foundation, Inc. Fiber optic communication method and apparatus providing mode multiplexing and holographic demultiplexing
US5355381A (en) * 1992-12-03 1994-10-11 Amoco Corporation Self-heterodyne optical fiber communications system
CA2156892A1 (en) * 1994-08-25 1996-02-26 Andrew S. Inenaga Method and apparatus for precipitation detection and differentiation
DE4444218A1 (de) * 1994-12-13 1996-06-27 Sel Alcatel Ag Optische Sendeeinrichtung für ein optisches Nachrichtenübertragungssystem in Verbindung mit einem Funksystem
DE19737482A1 (de) 1997-08-28 1999-03-04 Alsthom Cge Alcatel Verfahren zur optischen Übertragung über ein Lichtwellenleiternetz, sowie optisches Übertragungsnetz
DE102004022654A1 (de) * 2003-05-15 2004-12-23 Agilent Technologies, Inc. (n.d.Ges.d.Staates Delaware), Palo Alto Heterodynstrahl-Bereitstellung mit Aktivsteuerung zweier orthogonaler Polarisierungen
US6961129B2 (en) * 2003-05-15 2005-11-01 Agilent Technologies, Inc. Active control of two orthogonal polarizations for heterodyne interferometry
JP2005197659A (ja) * 2003-12-08 2005-07-21 Sony Corp 光学装置及び画像生成装置
JP4295322B2 (ja) * 2004-06-24 2009-07-15 日本電信電話株式会社 光−無線融合通信システムおよび光−無線融合通信方法
US7362445B2 (en) * 2005-06-17 2008-04-22 Agilent Technologies, Inc. Active control and detection of two nearly orthogonal polarizations in a fiber for heterodyne interferometry
US7406269B2 (en) * 2006-03-10 2008-07-29 Discovery Semiconductors, Inc. Feedback-controlled coherent optical receiver with electrical compensation/equalization
CN101917233B (zh) * 2010-08-29 2012-11-07 华中科技大学 一种适用于相干检测的全光相位噪声抑制方法
CN104218992B (zh) * 2014-09-15 2017-01-25 中国科学院半导体研究所 一种零差检测型相干光传输系统
FR3099245B1 (fr) * 2019-07-26 2021-07-30 Febus Optics Procede et dispositif de reconstruction d’une onde electromagnetique vectorielle retrodiffusee
EP4158800A1 (de) * 2020-05-28 2023-04-05 SEW-EURODRIVE GmbH & Co. KG System und verfahren zur datenübertragung mittels eines lichtstroms und technische anlage
US11595761B2 (en) * 2021-06-25 2023-02-28 Ciena Corporation Detecting and localizing acoustic signals with an optical network

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191047A (en) * 1961-09-28 1965-06-22 Hewlett Packard Co Optical maser heterodyning using photoresponsive detectors
US3214590A (en) * 1962-06-28 1965-10-26 Bell Telephone Labor Inc Communication receiver utilizing negative feedback polarization modulation of electromagnetic waves and communication system including said receiver
US3284632A (en) * 1963-07-31 1966-11-08 Sylvania Electric Prod Polarization modulation and demodulation
US3426207A (en) * 1964-06-17 1969-02-04 North American Rockwell Focused optical heterodyne system
US3435229A (en) * 1966-03-23 1969-03-25 Gen Telephone & Elect Signal transmission systems
JPS5943724B2 (ja) * 1980-07-22 1984-10-24 日本電信電話株式会社 光位相変調信号の復調方法
JPS5913434A (ja) * 1982-07-14 1984-01-24 Nec Corp 光ヘテロダイン検波方法
JPS59122140A (ja) * 1982-12-28 1984-07-14 Nec Corp 光ヘテロダイン検波装置
JPS6047524A (ja) * 1983-08-26 1985-03-14 Nippon Telegr & Teleph Corp <Ntt> 光受信装置
JPH0618348B2 (ja) * 1984-02-06 1994-03-09 日本電信電話株式会社 光受信回路制御装置
JPS60242435A (ja) * 1984-05-17 1985-12-02 Nec Corp 偏波ダイバ−シテイ光受信装置
JPS6123121A (ja) * 1984-07-12 1986-01-31 Nec Corp 光ヘテロダイン受信方法
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system

Also Published As

Publication number Publication date
DE241039T1 (de) 1989-12-07
DE3770972D1 (de) 1991-08-01
CA1250897A (en) 1989-03-07
JP2577905B2 (ja) 1997-02-05
EP0241039B1 (en) 1991-06-26
JPS62250428A (ja) 1987-10-31
EP0241039A2 (en) 1987-10-14
US4817206A (en) 1989-03-28
EP0241039A3 (en) 1989-08-09
IT8667291A0 (it) 1986-04-10

Similar Documents

Publication Publication Date Title
IT1189657B (it) Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina
IT1238535B (it) Sistema di comunicazione coerente in fibra ottica a diversita&#39; di polarizzazione in trasmissione
BR8901301A (pt) Cabo de fibra otica com meio de deteccao de violacao
DE3689587D1 (de) Optisches Übertragungssystem und -verfahren mit kohärenter Detektion.
DE3776017D1 (de) Fiberoptischer polarisator mit indium-ummantelung.
FR2586823B1 (fr) Fibre optique en un seul mode.
BR8304702A (pt) Sistema de conexao de fibra otica e conector de fibra otica
DE58907498D1 (de) Lichtwellenleiter-Steckverbindung.
MX9202841A (es) Polarizador retroreflector y sistema optico.
KR900006802A (ko) 광학 섬유 접속기
IT8922856A0 (it) Apparato giuntatore a laser con fibra ottica
ES1005088Y (es) Conectador de fibra optica
PT92240A (pt) Sistema laser utilizavel em medicina compreendendo diversos comprimentos de onda
IT9020022A0 (it) Sistema di sicurezza di fibre ottiche
IT8722261A0 (it) Connettore per fibre ottiche emetodo per posizionare assialmente una fibra ottica nel connettore.
DE69019652D1 (de) Erfassung und Messung von Signalen in faseroptischen Systemen.
IT8719423A0 (it) Accoppiatore rotante a fibra ottica con microcurve attenuatrici.
DE58908174D1 (de) Optisches Wellenleitermodul mit Faserankopplung.
DE68916790D1 (de) Optisches faser- und radargelenktes raketensystem.
IT1238711B (it) Metodo ed impianto interferometrico a frange codificate per rivelazione del fronte d&#39;onda in ottica.
BR8902413A (pt) Conector para fibras opticas e bloco contendo os mesmos
DE3674217D1 (de) Faseroptische abschlussvorrichtung mit schneidmittel.
DE68924297D1 (de) Faseroptischer Spleissverbinder.
FR2698452B1 (fr) Dispositif de positionnement et de retenue en nappe de fibres optiques.
KR900006803A (ko) 광섬유 접속기

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950419