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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 compliant Technical Specification Item Unit Parameters Channel spacing 20 nm ITU grids Wavelength rangenm1260 to 1620 Channel centers (ITU or ITU+1)nm1270/1290…1610 or 1271/1291…1611 Passbandnm≥+/-6.5 Passband rippledB≤0.30 Transmission insertion lossdB≤0.60 Reflection band rippledB≤0.20 Reflection insertion lossdB≤0.40 Transmission isolation (adj channel)dB≥30 Transmission isolation (non-adj channel)dB≥50 Reflection isolationdB≥14 Polarization dependent lossdB≤0.1 Polarization mode dispersionps≤0.2 Thermal StabilitydB/°C≤0.005 DirectivitydB≥50 Return lossdB≥45 Optical power handlingmW≤500 Tensile LoadN≥5 Operating temperature range°C-5 to 70 Storage temperature range°C-40 to +85 Fiber type SMF-28e Package dimensionmm≤5.5 x 34China CWDM Multiplexer website:http://www.arkoptics.com/cwdm-multiplexer/