IT1279248B1 - Sistema di trasmissione di segnali ottici modulati e depolarizzati - Google Patents

Sistema di trasmissione di segnali ottici modulati e depolarizzati

Info

Publication number
IT1279248B1
IT1279248B1 IT95MI002722A ITMI952722A IT1279248B1 IT 1279248 B1 IT1279248 B1 IT 1279248B1 IT 95MI002722 A IT95MI002722 A IT 95MI002722A IT MI952722 A ITMI952722 A IT MI952722A IT 1279248 B1 IT1279248 B1 IT 1279248B1
Authority
IT
Italy
Prior art keywords
modulated
transmission system
optical signals
signals transmission
depolarized optical
Prior art date
Application number
IT95MI002722A
Other languages
English (en)
Inventor
Flavio Fontana
Federico Frnzoso
Giuseppe Ravasio
Claudio Zammarchi
Original Assignee
Pirelli Cavi S P A Ora Pirelli
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 S P A Ora Pirelli filed Critical Pirelli Cavi S P A Ora Pirelli
Publication of ITMI952722A0 publication Critical patent/ITMI952722A0/it
Priority to IT95MI002722A priority Critical patent/IT1279248B1/it
Priority to US08/759,792 priority patent/US5910852A/en
Priority to NZ299898A priority patent/NZ299898A/en
Priority to AU74270/96A priority patent/AU709120B2/en
Priority to CA002192635A priority patent/CA2192635A1/en
Priority to EP96120224A priority patent/EP0781001B1/en
Priority to DE69631817T priority patent/DE69631817T2/de
Priority to ARP960105776A priority patent/AR005149A1/es
Priority to CN96121593A priority patent/CN1159688A/zh
Priority to JP8341652A priority patent/JPH09200128A/ja
Priority to BR9604740A priority patent/BR9604740A/pt
Priority to KR1019960069756A priority patent/KR970048630A/ko
Publication of ITMI952722A1 publication Critical patent/ITMI952722A1/it
Application granted granted Critical
Publication of IT1279248B1 publication Critical patent/IT1279248B1/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
    • H04B10/25—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)
IT95MI002722A 1995-12-21 1995-12-21 Sistema di trasmissione di segnali ottici modulati e depolarizzati IT1279248B1 (it)

Priority Applications (12)

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
US08/759,792 US5910852A (en) 1995-12-21 1996-12-03 Modulated and depolarized optical signal transmission system
NZ299898A NZ299898A (en) 1995-12-21 1996-12-06 Optical communication system: transmission modulator followed by depolarizer
AU74270/96A AU709120B2 (en) 1995-12-21 1996-12-10 Modulated and depolarised optical signal transmission system
CA002192635A CA2192635A1 (en) 1995-12-21 1996-12-11 Modulated and depolarized optical signal transmission system
DE69631817T DE69631817T2 (de) 1995-12-21 1996-12-17 Sender für modulierte und depolarisierte optische Signale
EP96120224A EP0781001B1 (en) 1995-12-21 1996-12-17 Modulated and depolarized optical signal transmitter
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
CN96121593A CN1159688A (zh) 1995-12-21 1996-12-20 调制和去偏振光信号传输系统
JP8341652A JPH09200128A (ja) 1995-12-21 1996-12-20 変調されおよび減偏光された光信号の送信システム
BR9604740A BR9604740A (pt) 1995-12-21 1996-12-20 Sistema de comunicaçao óptica transmissor e método de transmissao de sinais ópticos modulados e despolarizados
KR1019960069756A KR970048630A (ko) 1995-12-21 1996-12-21 변조되고 감극된 광신호 전송 시스템

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 (3)

Publication Number Publication Date
ITMI952722A0 ITMI952722A0 (it) 1995-12-21
ITMI952722A1 ITMI952722A1 (it) 1997-06-21
IT1279248B1 true IT1279248B1 (it) 1997-12-09

Family

ID=11372788

Family Applications (1)

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

Country Status (12)

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

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
US6556326B2 (en) * 1996-12-20 2003-04-29 Tyco Telecommunications (Us) Inc. Synchronous amplitude modulation for improved performance of optical transmission systems
US20040161245A1 (en) * 1996-12-20 2004-08-19 Bergano Neal S. 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
US20060291868A1 (en) * 1999-12-29 2006-12-28 Forster Energy Llc Optical communications using multiplexed single sideband transmission and heterodyne detection
CN1395771A (zh) * 2000-01-17 2003-02-05 康宁O.T.I股份公司 与调制器集成的衰减器用于使用它的wdm系统的发射模块
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
EP1490990A1 (en) * 2002-03-22 2004-12-29 Qtera Corporation Depolarised 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
US5910852A (en) 1999-06-08
CN1159688A (zh) 1997-09-17
EP0781001B1 (en) 2004-03-10
NZ299898A (en) 1997-12-19
CA2192635A1 (en) 1997-06-22
DE69631817T2 (de) 2005-03-17
BR9604740A (pt) 1998-06-23
AU7427096A (en) 1997-06-26
JPH09200128A (ja) 1997-07-31
ITMI952722A1 (it) 1997-06-21
AU709120B2 (en) 1999-08-19
EP0781001A1 (en) 1997-06-25
KR970048630A (ko) 1997-07-29
ITMI952722A0 (it) 1995-12-21
AR005149A1 (es) 1999-04-14
DE69631817D1 (de) 2004-04-15

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