ITUTSeries G.docx

ITUTSeries G.docx

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ITUTSeriesG

InternationalTelecommunicationUnion

ITU-T

Series G

TELECOMMUNICATION

STANDARDIZATIONSECTOR

OFITU

Supplement 40

（11/2006）

SERIESG:

TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKS

OpticalfibreandcableRecommendationsandstandardsguideline

ITUTG-seriesRecommendations  –Supplement 40

ITU-TG-SERIESRECOMMENDATIONS

TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKS

INTERNATIONALTELEPHONECONNECTIONSANDCIRCUITS

G.100–G.199

GENERALCHARACTERISTICSCOMMONTOALLANALOGUECARRIER-TRANSMISSIONSYSTEMS

G.200–G.299

INDIVIDUALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONESYSTEMSONMETALLICLINES

G.300–G.399

GENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONESYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTIONWITHMETALLICLINES

G.400–G.449

COORDINATIONOFRADIOTELEPHONYANDLINETELEPHONY

G.450–G.499

TRANSMISSIONMEDIACHARACTERISTICS

G.600–G.699

DIGITALTERMINALEQUIPMENTS

G.700–G.799

DIGITALNETWORKS

G.800–G.899

DIGITALSECTIONSANDDIGITALLINESYSTEM

G.900–G.999

QUALITYOFSERVICEANDPERFORMANCE–GENERICANDUSER-RELATEDASPECTS

G.1000–G.1999

TRANSMISSIONMEDIACHARACTERISTICS

G.6000–G.6999

DATAOVERTRANSPORT–GENERICASPECTS

G.7000–G.7999

PACKETOVERTRANSPORTASPECTS

G.8000–G.8999

ACCESSNETWORKS

G.9000–G.9999

Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.

Supplement 40toITU-TG-seriesRecommendations

OpticalfibreandcableRecommendationsandstandardsguideline

Summary

ThisSupplementprovidesinformationonthebackgroundandspecificationsusedinthedevelopmentofopticalfibreandcableITU-TRecommendationssuchas[ITU-TG.651],[ITUT G.652],[ITU-TG.653],[ITU-TG.654],[ITU-TG.655],[ITU-TG.656],[ITU-TG.657]andLseries.ItalsocontainsinformationusedinthedevelopmentoftestmethodRecommendationssuchas[ITU-TG.650.1]and[ITU-TG.650.2].Moreover,thisSupplementmapsITUTdocumentstoopticalfibreandcablestandardsdevelopedunderIEC.

Source

Supplement 40toITUTG-seriesRecommendationswasagreedon10 November 2006byITUTStudyGroup 15（2005-2008）.

FOREWORD

TheInternationalTelecommunicationUnion（ITU）istheUnitedNationsspecializedagencyinthefieldoftelecommunications.TheITUTelecommunicationStandardizationSector（ITU-T）isapermanentorganofITU.ITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.

TheWorldTelecommunicationStandardizationAssembly（WTSA）,whichmeetseveryfouryears,establishesthetopicsforstudybytheITUTstudygroupswhich,inturn,produceRecommendationsonthesetopics.

TheapprovalofITU-TRecommendationsiscoveredbytheprocedurelaiddowninWTSAResolution 1.

InsomeareasofinformationtechnologywhichfallwithinITU-T'spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.

NOTE

Inthispublication,theexpression"Administration"isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.

Compliancewiththispublicationisvoluntary.However,thepublicationmaycontaincertainmandatoryprovisions（toensuree.g.interoperabilityorapplicability）andcompliancewiththepublicationisachievedwhenallofthesemandatoryprovisionsaremet.Thewords"shall"orsomeotherobligatorylanguagesuchas"must"andthenegativeequivalentsareusedtoexpressrequirements.Theuseofsuchwordsdoesnotsuggestthatcompliancewiththepublicationisrequiredofanyparty.

INTELLECTUALPROPERTYRIGHTS

ITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthispublicationmayinvolvetheuseofaclaimedIntellectualPropertyRight.ITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideofthepublicationdevelopmentprocess.

Asofthedateofapprovalofthispublication,ITUhadnotreceivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthispublication.However,implementersarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabaseathttp:

//www.itu.int/ITU-T/ipr/.

  ITU  2007

Allrightsreserved.Nopartofthispublicationmaybereproduced,byanymeanswhatsoever,withoutthepriorwrittenpermissionofITU.

CONTENTS

Page

1Scope1

2References1

3Definitions4

3.1Termsdefinedelsewhere4

3.2TermsdefinedinthisSupplement5

4Abbreviationsandacronyms6

5Conventions6

6Featuresofexistingopticalfibrecategoriesandtheirapplicationareas6

6.1Attenuationproperties6

6.2Dispersionproperties6

6.3Bendingproperties6

7Relationshipbetweenfibreparametersandinterfaceparameters6

7.1RelationshipbetweenPMDandDGD6

7.2Transmissionlimitationduetodispersionproperties6

8Unspecifiedfibreparametersandtheirtestmethods7

8.1Non-linearcoefficient7

8.2EffectiveareaAeff7

8.3Stimulatedbrillouinscattering（SBS）threshold7

8.4Ramangaincoefficient7

8.5Microbendingloss7

9Opticalfibrepropertiesforoperationandmaintenance7

9.1Propertiesofcut-offwavelengthunderthedeploymentconditions7

9.2Propertiesofchromaticdispersionandpolarizationmodedispersion7

9.3Spliceloss7

9.4Inputpowerlimitationandsafetyaspects7

9.5Reliabilityofopticalfibrecable8

9.6Opticallosspropertiesduetohydrogen8

9.7Environmentaltestconditionsforfibres8

9.8Opticalfibrecablenetworkmaintenance8

AppendixI–Standardizedcriteria9

I.1CriteriaforrevisingtheopticalfibreRecommendations9

I.2GuidelineforconductingmeasurementroundrobinsinQuestion5ofITU-TStudyGroup15（Q.5/15）9

AppendixII–Opticalfibrecablestructures10

AppendixIII–Fibreopticshardwareandpassivecomponents11

AppendixIV–Constructionandinstallationpractices12

Page

AppendixV–StatusofopticalfibreandcablespecificationsinITU-TandIEC13

V.1Fibrespecifications13

V.2Fibrecablespecifications14

AppendixVI–ComparisonofITU-TRecommendationsandIECdocumentsconcerningtestmethods15

VI.1Testmethodsforsingle-modefibres15

VI.2Testmethodsformultimodefibres18

VI.3DocumentsavailableonlyinIECandnotinITU-T19

Supplement 40toITU-TG-seriesRecommendations

OpticalfibreandcableRecommendationsandstandardsguideline

1Scope

Thisfibreguidelineaimsatprovidingaroadmapwithregardtothespecificationsofvariouskindsoffibresandtheirtestmethods,aswellasthemostimportantfibreopticshardwarewhichwillbeveryusefulforengineersreadingtheITU-TRecommendationsandotherdocumentstodesignanopticalfibrenetwork.Thisguidelineshouldalsomakeiteasierforreaderstocorrelatethespecificationsfoundinthefibre,component,terrestrialsysteminterface,andsubmarinesystemRecommendationscurrentlybeingdevelopedinQuestions5,7,6and8ofITU-TStudyGroup15,respectively.Moreover,thisguidelineprovidesimportantinformationforsystemdesignsandopticalfibrecableinstallationsinrelationto,forexample,highpowerlimitationsandreliability,whichisavailabletoopticalfibrecableinstallationsuppliersandsystemdesigners.Thisguidelinecontains:

–DefinitionsoffibreparametersnotspecifiedincurrentITU-TfibreRecommendationsbutveryimportantforpracticaluse.

–Featuresofexistingopticalfibrecategoriesandtheirapplicationareas.

–Therelationshipbetweenfibreparametersandinterfaceparameters.

–Opticalfibrepropertiesforoperationandmaintenance.

Intheappendices,thefollowingitemsaredescribedforreference:

–StandardizationcriteriaforopticalfibresinITU-TStudyGroup15.

–Opticalfibrecablestructuresandconstructions.

–Fibreopticshardwareandpassivecomponentsmostlyusedintheconstructionofanopticalnetwork.

–ComparisonofITU-TRecommendationsandIECdocumentsrelatedtoopticalfibrespecificationsandtestmethods.

Inparticular,thisguidelineispreparedconciselybyquotingdocumentnumberssoastoavoidanyoverlapwithexistingITU-TRecommendationsandHandbooksorIECdocuments.Thisguidelinewouldbeaveryusefuldeskbookforengineersdealingwithopticaltransmissionsystems.

2References

[ITU-TG.650.1]ITUTRecommendationG.650.1（2004）,Definitionsandtestmethodsforlinear,deterministicattributesofsinglemodefibreandcable.

[ITU-TG.650.2]ITUTRecommendationG.650.2（2005）,Definitionsandtestmethodsforstatisticalandnon-linearrelatedattributesofsinglemodefibreandcable.

[ITU-TG.651]ITU-TRecommendationG.651（1998）,Characteristicsofa50/125μmmultimodegradedindexopticalfibrecable.

[ITU-TG.652]ITUTRecommendationG.652（2005）,Characteristicsofasinglemodeopticalfibreandcable.

[ITU-TG.653]ITUTRecommendationG.653（2006）,Characteristicsofadispersionshiftedsinglemodeopticalfibreandcable.

[ITU-TG.654]ITUTRecommendationG.654（2006）,Characteristicsofacut-offshiftedsingle-modeopticalfibreandcable.

[ITU-TG.655]ITUTRecommendationG.655（2006）,Characteristicsofanonzerodispersion-shiftedsinglemodeopticalfibreandcable.

[ITU-TG.656]ITUTRecommendationG.656（2006）,Characteristicsofafibreandcablewithnon-zerodispersionforwidebandopticaltransport.

[ITU-TG.657]ITU-TRecommendationG.657（2006）,Characteristicsofabendinglossinsensitivesinglemodeopticalfibreandcablefortheaccessnetwork.

[ITU-TG.663]ITU-