Agilent81623BTheHP/Agilent81623BopticalheadsarespeciallydesignedforlowPDL,lowspectralrippleandhighreturnlossandareusedforopticalcomponenttest.Theopticalheadshavetobeoperatedwiththesingle(Agilent81618A)ordual(Agilent81619A)interfacemodules.TheheadscomewithamagneticD-shapeadapterandprovideasafestand.Thesemodulesarecontrolledinanyconfigurationinanyofthemainframes8163B,8164Band8166B.AhighlyflexibleconnectorinterfacepaletteaddressesConnectorized,barefiberoropenbeamapplications.