FR2854750A1 - CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION - Google Patents

CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION

Info

Publication number
FR2854750A1
FR2854750A1 FR0305561A FR0305561A FR2854750A1 FR 2854750 A1 FR2854750 A1 FR 2854750A1 FR 0305561 A FR0305561 A FR 0305561A FR 0305561 A FR0305561 A FR 0305561A FR 2854750 A1 FR2854750 A1 FR 2854750A1
Authority
FR
France
Prior art keywords
chromatic dispersion
dispersion compensation
amplification
compensation module
transmission
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.)
Withdrawn
Application number
FR0305561A
Other languages
French (fr)
Inventor
Bon Hoa Daniel Hui
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Priority to FR0305561A priority Critical patent/FR2854750A1/en
Priority to PCT/FR2004/001087 priority patent/WO2004100405A2/en
Publication of FR2854750A1 publication Critical patent/FR2854750A1/en
Withdrawn legal-status Critical Current

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
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/2525—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/298—Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/25—Distortion or dispersion compensation
    • H04B2210/256—Distortion or dispersion compensation at the repeater, i.e. repeater compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)

Abstract

Pour compenser la dispersion optique survenant lors de la transmission de signaux optiques dans un réseau optique bidirectionnel, des modules d'amplification (10) sont prévus qui comportent un seul module de compensation de dispersion chromatique utilisé pour effectuer la compensation voulue pour les signaux se propageant dans les deux sens de transmission. Le module de compensation de dispersion chromatique peut comprendre une bobine de fibre compensatrice de dispersion chromatique, F1, et deux circulateurs optiques indépendants de la polarisation C1, C2 qui permettent l'aiguillage approprié des signaux optiques se propageant dans les deux sens. Le module de compensation de dispersion chromatique est disposé entre les étages de pré-amplification (A1,A2) et d'amplification en puissance (B1,B2) des deux sens de transmission. Le module de compensation de dispersion chromatique compense la demi-somme des dispersions chromatique des deux tronçons de ligne (de longueurs L1 et L2) qui relient le module d'amplification 10 aux sites d'amplification voisins.To compensate for the optical dispersion occurring during the transmission of optical signals in a bidirectional optical network, amplification modules (10) are provided which comprise a single chromatic dispersion compensation module used to carry out the desired compensation for the propagating signals. in both directions of transmission. The chromatic dispersion compensation module can comprise a coil of chromatic dispersion compensating fiber, F1, and two optical circulators independent of the polarization C1, C2 which allow the appropriate routing of the optical signals propagating in both directions. The chromatic dispersion compensation module is arranged between the pre-amplification (A1, A2) and power amplification (B1, B2) stages of the two directions of transmission. The chromatic dispersion compensation module compensates for the half-sum of the chromatic dispersions of the two line sections (of lengths L1 and L2) which connect the amplification module 10 to the neighboring amplification sites.

FR0305561A 2003-05-07 2003-05-07 CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION Withdrawn FR2854750A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0305561A FR2854750A1 (en) 2003-05-07 2003-05-07 CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION
PCT/FR2004/001087 WO2004100405A2 (en) 2003-05-07 2004-05-06 Chromatic dispersion compensation in a bidirectional optical transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0305561A FR2854750A1 (en) 2003-05-07 2003-05-07 CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION

Publications (1)

Publication Number Publication Date
FR2854750A1 true FR2854750A1 (en) 2004-11-12

Family

ID=33306213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0305561A Withdrawn FR2854750A1 (en) 2003-05-07 2003-05-07 CHROMATIC DISPERSION COMPENSATION IN AN OPTITUAL SYSTEM WITH TWO-WAY TRANSMISSION

Country Status (2)

Country Link
FR (1) FR2854750A1 (en)
WO (1) WO2004100405A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779295A1 (en) * 1998-05-29 1999-12-03 Kokusai Denshin Denwa Co Ltd Double ended chromatic dispersion device using a chirped grating for use in multi-wavelength light transmission systems
US20010028757A1 (en) * 2000-04-10 2001-10-11 Lee Chang Hee Bidirectional add/drop multiplexer and bidirectional add/drop amplifier module for wavelength interleaved bidirectional networks
US20020093708A1 (en) * 2000-09-11 2002-07-18 Dietmar Johlen Method and apparatus for the frequency band-dependent distribution and influencing of data signals of a WDM system
US6480312B1 (en) * 1997-12-16 2002-11-12 Sumitomo Electric Industries, Ltd. Dispersion compensating system used for bi-directional optical communication
US20020191275A1 (en) * 1998-09-03 2002-12-19 Fujitsu Limited Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687030A1 (en) * 1992-02-04 1993-08-06 Alsthom Cge Alcatel Installation for bi-directional information transmission using optical fibre(s)
JP3522044B2 (en) * 1996-04-19 2004-04-26 富士通株式会社 Optical transmission system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480312B1 (en) * 1997-12-16 2002-11-12 Sumitomo Electric Industries, Ltd. Dispersion compensating system used for bi-directional optical communication
FR2779295A1 (en) * 1998-05-29 1999-12-03 Kokusai Denshin Denwa Co Ltd Double ended chromatic dispersion device using a chirped grating for use in multi-wavelength light transmission systems
US20020191275A1 (en) * 1998-09-03 2002-12-19 Fujitsu Limited Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands
US20010028757A1 (en) * 2000-04-10 2001-10-11 Lee Chang Hee Bidirectional add/drop multiplexer and bidirectional add/drop amplifier module for wavelength interleaved bidirectional networks
US20020093708A1 (en) * 2000-09-11 2002-07-18 Dietmar Johlen Method and apparatus for the frequency band-dependent distribution and influencing of data signals of a WDM system

Also Published As

Publication number Publication date
WO2004100405A2 (en) 2004-11-18
WO2004100405A3 (en) 2005-05-19

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Effective date: 20070131