CWDM filter also called as CWDM device, ranges from 1270nm to 1610nm, with 20nm channel space and CWL±6.5nm passband.  Our CWDM filters are using stainless steel tube package, coming out with 250um bare fiber or 900um patches, can terminated with LC,SC,FC,ST and other types of connector on request.Features � Thin-Film-Filter(TFF) technology   � Low insertion loss � High channel isolation� Flat and wide passband              � Low polarization dependent loss � Epoxy-free � Exceptionally stable and reliable � Telcordia GR-1221 compliant � Telcordia GR1209 compliantTechnical SpecificationItem Unit Parameters Channel spacing20 nm ITU gridsWavelength rangenm1260 to 1620Channel centers (ITU or ITU+1)nm1270/1290�1610 or 1271/1291�1611Passbandnm�+/-6.5Passband rippledB�0.30Transmission insertion lossdB�0.60Reflection band rippledB�0.20Reflection insertion lossdB�0.40Transmission isolation (adj channel)dB�30Transmission isolation (non-adj channel)dB�50Reflection isolationdB�14Polarization dependent lossdB�0.1Polarization mode dispersionps�0.2Thermal StabilitydB/°C�0.005DirectivitydB�50Return lossdB�45Optical power handlingmW�500Tensile LoadN�5Operating temperature range°C-5 to 70Storage temperature range°C-40 to +85Fiber typeSMF-28ePackage dimensionmm�5.5 x 34
