ITU-T-G.654-2012截止波长位移单模光纤cut-off-wavelength-shift

Contact:SatoshiOhnukiCLPAJJapanTel:[phone]Fax:[phone]Email:[e-mail]:Thisisnotapublicationmadeavailabletothepublic,butaninternalITU-TDocumentintendedonlyforusebytheMemberStatesofITU,byITU-TSectorMembersandAssociates,andtheirrespectivestaffandcollaboratorsintheirITUrelatedwork.Itshallnotbemadeavailableto,andusedby,anyotherpersonsorentitieswithoutthepriorwrittenconsentofITU-T.INTERNATIONALTELECOMMUNICATIONUNIONSTUDYGROUP15TELECOMMUNICATIONSTANDARDIZATIONSECTORSTUDYPERIOD2009-2012TD713(PLEN/15)EnglishonlyOriginal:EnglishQuestion(s):5/1510-21September2012TDSource:EditorG.654Title:DraftrevisedRecommendationITU-TG.654(ForConsent,September2012)IntroductionThistemporarydocumentshowsthedraftrevisedRec.G.654forconsent,whichreflectedtheresultsoftheE-mailcorrespondencefromJune2012.AllmodificationstotheexistingRec.G.654wereshownwithrevisionmarksandtworemainingopenissues,onwhichtheparticipantsshowedthedifferentcomments,arehighlightedbyyellowmarkswiththeactingeditorsnote.-2-TD713(PLEN/15)RecommendationITU-TG.654Characteristicsofacut-offshifted,single-modeopticalfibreandcableSummaryRecommendationITU-TG.654describesthegeometrical,mechanicalandtransmissionattributesofasingle-modeopticalfibreandcablewhichhasthezero-dispersionwavelengtharound1300nmwavelength,andwhichisloss-minimizedandcut-offwavelengthshiftedataroundthe1550nmwavelengthregion.ThisisthelatestrevisionofthisRecommendationthatwasfirstcreatedin1988.Version9.0introducedcategoryDofG.654fibreinordertoimprovetheOSNRcharacteristics,e.g.,whichcanbeappliedtohigherbit-ratesubmarinesystems.Itisintendedtomaintainthecontinuingcommercialsuccessofthisfibreintheevolvingworldofhigh-performanceopticaltransmissionsystems.HistoryEditionRecommendationApprovalStudyGroup1.0ITU-TG.6541988-11-25XV2.0ITU-TG.6541993-03-12XV3.0ITU-TG.6541997-04-08154.0ITU-TG.6542000-10-06155.0ITU-TG.6542002-06-29156.0ITU-TG.6542004-06-13157.0ITU-TG.6542006-12-14158.0ITU-TG.6542010-07-29159.0ITU-TG.6542012-MM-DD15-3-TD713(PLEN/15)CONTENTSPage1Scope.............................................................................................................................12References.....................................................................................................................13Definitions....................................................................................................................24Abbreviations................................................................................................................25Fibreattributes..............................................................................................................25.1Modefielddiameter.......................................................................................25.2Claddingdiameter..........................................................................................25.3Coreconcentricityerror..................................................................................25.4Non-circularity...............................................................................................35.5Cut-offwavelength.........................................................................................35.6Macrobendingloss..........................................................................................45.7Materialpropertiesofthefibre.......................................................................45.8Refractiveindexprofile..................................................................................45.9Longitudinaluniformityofchromaticdispersion...........................................45.10Chromaticdispersioncoefficient....................................................................56Cableattributes.............................................................................................................56.1Attenuationcoefficient...................................................................................56.2Polarizationmodedispersion(PMD)coefficient...........................................57Tableofrecommendedvalues......................................................................................6AppendixI–Informationforlinkattributesandsystemdesign.............................................11I.1Attenuation.....................................................................................................11I.2Chromaticdispersion......................................................................................11I.3Differentialgroupdelay(DGD).....................................................................12I.4Non-linearcoefficient.....................................................................................12I.5Tablesofcommontypicalvalues...................................................................12Bibliography.............................................................................................................................14-4-TD713(PLEN/15)RecommendationITU-TG.654Characteristicsofacut-offshift