光纤头的机械研磨

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1、MECHANICALFIBERPOLISHINGTechniquesforAchieving&ExceedingConnectorPolishingRequirementswww.ultratecusa.comBackgroundWithinthecommunicationsfield,highstandardsofconnectorperformanceareneededfortelephonetransmissionandevenhigherstandardsforCATVPolishedconnectorsarequalitytestedtoensuretheyal

2、lowmaximumlighttransmissionwithminimalinterferenceInthispresentationwediscussthevariousimportantpolishingperformancecriteriaandsuggestmethodstoensureconnectorsarepolishedrightfirsttime,everytimewww.ultratecusa.comEnsuringPerformanceThekeyperformancecriteriaforpolishedconnectorsare:òBackre

3、flectionòInsertionLossòApexOffsetòFiberUndercut/ProtrusionòVisualQualitywww.ultratecusa.comBackreflectionBackreflection(or“returnloss”)referstolightreflectedbackthroughthefibertowardthesource.Itmustbeminimized(tolessthan–55dB)toinsurespeedandclarityofinformationtransfer.Backreflectioniste

4、stedasshownbelow:Backreflectioncanbeimproved(minimized)bycontrolofthefollowingfactors…www.ultratecusa.comImprovingBackreflectionPolishingMethod–UseofamechanicalpolisherensuresanevenpolishofallsidesoftheconnectorendfaceThisleadstoreproduciblefinishesandconnectorsthatmateperfectly–improving

5、backreflectionPolishingTechnique–‘Recipes’existtoimproveclarityofthepolishandsoimprovebackreflectionCleaving–AbadcleavebeforepolishingwillaffectallsubsequentpolishingstepsandoverallperformanceCleanliness–Thiscannotbestressedenough.Thoroughcleaningofconnectorsbetweeneachstep,alongwiththeus

6、eofrapidchangepolishingplatesreducesthepossibilityforcross-contaminationhelpsensurebackreflectionresultswww.ultratecusa.comAskULTRATECformoredetails…InsertionLossInsertionlossistheamountofopticalpowerlostattheinterfaceoftwoconnectors.Poorinsertionlossreadingsaregenerallyaresultoffibermisa

7、lignment,separationbetweenconnectionsand/orthequalityofthefinishontheendoftheconnector.www.ultratecusa.comImprovingInsertionLossInsertionlosscanbeimproved(minimized)by…òCAREFULSELECTIONOFMACHINERY--Amachinethatproducespoorend-facegeometrywillalmostalwaysgenerateunac