AR005149A1 - Dispositivo de comunicaciones opticas que comprende un transmisor de senales opticas modulado y despolarizado, y metodo de transmision de dichas senales - Google Patents

Dispositivo de comunicaciones opticas que comprende un transmisor de senales opticas modulado y despolarizado, y metodo de transmision de dichas senales

Info

Publication number
AR005149A1
AR005149A1 ARP960105776A ARP960105776A AR005149A1 AR 005149 A1 AR005149 A1 AR 005149A1 AR P960105776 A ARP960105776 A AR P960105776A AR P960105776 A ARP960105776 A AR P960105776A AR 005149 A1 AR005149 A1 AR 005149A1
Authority
AR
Argentina
Prior art keywords
optical
signal
band
snr
transmission
Prior art date
Application number
ARP960105776A
Other languages
English (en)
Original Assignee
Pirelli Cavi Spa
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 Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Publication of AR005149A1 publication Critical patent/AR005149A1/es

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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
    • 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)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

Se describe un sistema de comunicaciones opticas el cual comprende una fuente optica; un modulador optico, el cual recibe una senal de transmision queposee frecuencias incluidas dentro de una banda de senales y que esta adaptado para emitiruna senal optica modulada de un ancho de banda opticopredeterminado; una linea de transmision optica que comprende una porcion de fibra optica; un receptor optico adaptado para recibir la senal optica en lapresencia de una SNR predeterminada enla ba nda de senales, medida en una banda de 5 MHz. El sistema de telecomunicaciones comprende, asimismo, conectadoopticamente entre el modulador optico y la linea de transmision optica, un despolizador que comprende dos porciones de fibraoptica de m antenimiento depolarizacion, conectadas opticamente entre si de manera tal que los respectivos ejes de polarizacion forman un angulo de 45° en el cual el ancho de bandaoptica, las longitudes y la birrefrigencia de las fibras opticas dema ntenimiento de polarizacion se seleccionan operativamente de modo que la SNRen el receptor en la banda de senal no difiere mas de 1 dB de la SNR en el receptor medida en una banda de 5 MHz substituyendo la porcion de fibra opticade la lineade t ransmision por un atenuador pasivo de la misma atenuacion.
ARP960105776A 1995-12-21 1996-12-19 Dispositivo de comunicaciones opticas que comprende un transmisor de senales opticas modulado y despolarizado, y metodo de transmision de dichas senales AR005149A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95MI002722A IT1279248B1 (it) 1995-12-21 1995-12-21 Sistema di trasmissione di segnali ottici modulati e depolarizzati

Publications (1)

Publication Number Publication Date
AR005149A1 true AR005149A1 (es) 1999-04-14

Family

ID=11372788

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP960105776A AR005149A1 (es) 1995-12-21 1996-12-19 Dispositivo de comunicaciones opticas que comprende un transmisor de senales opticas modulado y despolarizado, y metodo de transmision de dichas senales

Country Status (12)

Country Link
US (1) US5910852A (es)
EP (1) EP0781001B1 (es)
JP (1) JPH09200128A (es)
KR (1) KR970048630A (es)
CN (1) CN1159688A (es)
AR (1) AR005149A1 (es)
AU (1) AU709120B2 (es)
BR (1) BR9604740A (es)
CA (1) CA2192635A1 (es)
DE (1) DE69631817T2 (es)
IT (1) IT1279248B1 (es)
NZ (1) NZ299898A (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1093164A (ja) 1996-09-17 1998-04-10 Kokusai Denshin Denwa Co Ltd <Kdd> 多波長光源及び離散波長可変光源
GB2318646A (en) * 1996-10-25 1998-04-29 Stc Submarine Systems Ltd Optical polarisation scrambling
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
JP3094950B2 (ja) * 1997-05-28 2000-10-03 日本電気株式会社 光送信装置及び光送信方法
US6285477B1 (en) * 1997-09-17 2001-09-04 Kokusai Denshin Denwa Kabushiki Kaisha Multi-wavelength light source and discrete-wavelength-variable light source
US6282003B1 (en) * 1998-02-02 2001-08-28 Uniphase Corporation Method and apparatus for optimizing SBS performance in an optical communication system using at least two phase modulation tones
JP3567763B2 (ja) * 1998-06-12 2004-09-22 Ｋｄｄｉ株式会社 光送信装置
US7447436B2 (en) * 1999-12-29 2008-11-04 Forster Energy Llc Optical communications using multiplexed single sideband transmission and heterodyne detection
CA2397049A1 (en) * 2000-01-17 2001-07-26 Corning O.T.I. S.P.A. Attenuator integrated with modulator and transmitting module for wdm system using the same
US6760151B1 (en) 2000-04-27 2004-07-06 Jds Uniphase Corporation Depolarized semiconductor laser sources
US6418258B1 (en) * 2000-06-09 2002-07-09 Gazillion Bits, Inc. Microstructured optical fiber with improved transmission efficiency and durability
US7203429B2 (en) * 2001-05-07 2007-04-10 Tyco Telecommunications (Us) Inc. Optical transmission system using optical signal processing in terminals for improved system performance
US6735350B1 (en) 2001-08-31 2004-05-11 Nlight Photonics Corporation Passive depolarizer
WO2003084101A1 (en) * 2002-03-22 2003-10-09 Qtera Corporation Depolarized optical signal transmitter
US7002733B2 (en) * 2003-01-30 2006-02-21 Quantum Photonics, Inc. Methods and devices for amplifying optical signals using a depolarizer
US7146110B2 (en) 2003-02-11 2006-12-05 Optium Corporation Optical transmitter with SBS suppression
FR2859056B1 (fr) * 2003-08-19 2005-09-30 Cit Alcatel Methode de formation d'un signal optique code suivant un format retour a zero ou non retour a zero
US7555221B2 (en) * 2004-12-23 2009-06-30 Alcatel-Lucent Usa Inc. Method and apparatus for polarization-independent RF spectrum analysis of an optical source
US20070297807A1 (en) * 2006-06-27 2007-12-27 Yihong Chen Noise mitigation in analog optical transmission systems using polarization scrambler
JP2008054202A (ja) * 2006-08-28 2008-03-06 Sumitomo Osaka Cement Co Ltd 光送信機
CN101505192B (zh) * 2008-02-04 2011-09-21 华为技术有限公司 一种产生差分正交相移键控码光信号的方法及装置
FI20095116A0 (fi) * 2009-02-06 2009-02-06 Luxdyne Oy Vaihekohinan vähentäminen optisessa järjestelmässä
IL249320B2 (en) * 2016-11-30 2023-06-01 Elbit Systems Electro Optics Elop Ltd Narrow film fiber laser with depolarization
JP2020077666A (ja) * 2018-11-05 2020-05-21 株式会社Ｋｏｋｕｓａｉ Ｅｌｅｃｔｒｉｃ 基板処理装置、半導体装置の製造方法、プログラムおよび記録媒体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI74371C (fi) 1982-06-04 1988-01-11 British Telecomm Optisk oeverfoering.
JPS59155806A (ja) * 1983-02-24 1984-09-05 Kokusai Denshin Denwa Co Ltd <Kdd> 無偏光素子
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system
US5200964A (en) * 1991-03-12 1993-04-06 General Instrument Corporation Broad linewidth lasers for optical fiber communication systems
JP3223562B2 (ja) 1992-04-07 2001-10-29 株式会社日立製作所 光送信装置、光伝送装置および光変調器
EP0570151B1 (en) 1992-05-08 1997-10-29 Kokusai Denshin Denwa Co., Ltd Optical transmitter with the signal light of reduced degree of polarization and optical depolarizing circuit
US5477375A (en) * 1993-04-30 1995-12-19 At&T Corp. Optical soliton generator
JP3284507B2 (ja) * 1993-06-28 2002-05-20 富士通株式会社 光通信システム用の光送信装置及び光増幅装置

Also Published As

Publication number Publication date
ITMI952722A0 (es) 1995-12-21
US5910852A (en) 1999-06-08
ITMI952722A1 (it) 1997-06-21
EP0781001B1 (en) 2004-03-10
CA2192635A1 (en) 1997-06-22
NZ299898A (en) 1997-12-19
CN1159688A (zh) 1997-09-17
JPH09200128A (ja) 1997-07-31
AU709120B2 (en) 1999-08-19
AU7427096A (en) 1997-06-26
KR970048630A (ko) 1997-07-29
IT1279248B1 (it) 1997-12-09
DE69631817D1 (de) 2004-04-15
BR9604740A (pt) 1998-06-23
EP0781001A1 (en) 1997-06-25
DE69631817T2 (de) 2005-03-17

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