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  T&S TFF WDM filter   is based on Thin Film Filter (TFF) technology. Our Filter-Based WDM product family covers following wavelength windows commonly used in optical fibre systems: 1310/1490/1550nm (for FWDM Device), 1271~1611nm (for CWDM Device or Module), 1525~1565nm (C_band for 100G/200G DWDM Device or Module) and 1269.23~1318.35nm (for 800G LWDM Device or Module),  1271 ± 3.5~1371 ± 3.5nm (for  MWDM Device or Module) and 1270/1310/1490/1534/1577/1610/1650nm (for  Cex-wdm Modules, including GPON, XG-PON, NG-PON2 and OTDR ).   T&S WDM products have good wavelength stability and temperature stability. They meet the requirements of ordinary commercial-grade environments and the industrial-grade environmental requirements of 5G fronthaul networks; and the wavelength, bandwidth and other parameters of TFF products are flexible. Corresponding products can be customized according to customer requirements, so that TFF-based WDM products can be widely used in various communication s

  T&S DWDM Device   meets the ITUT-G.694.1 DWDM wavelength standard. Its frequency interval is 100Ghz and 200Ghz optional. It has low insertion loss, polarization-dependent loss, and high isolation. Stable wavelength thermal stability.   Features of TFF DWDM 3 Ports Device Automatic Optical alignment   Optical path epoxy free    Low insert loss & high isolation    Telcordia-GR-1221-Core qualified   RoHS compliant   Applications of TFF DWDM 3 Ports Device   PON system   FTTx network   DWDM system   Add/drop channel   Specifications of TFF DWDM 3 Ports Device   Parameter Unit Specification Operating Wavelength nm C/L Band Channel Spacing GHz 100 200 Channel Center Wavelength nm ITU grid Channel Center Passband nm λITU ±0.11 λITU ±0.25 Port of Transmission (Port1= ＞ Port2) Transmission Insertion Loss dB ≤1.0(Typical 0.6) ≤1.0(Typical 0.6) Adjacent Channel Isolation dB ＞ 25 Non-Adjacent Channel Isolation dB ＞ 35 Pass Band Ripple dB ≤0.5 PDL dB ≤0.1 Port of Reflection (Port1= ＞ Port

  T&S coarse wavelength division optical add/drop multiplexing module has flexible wavelength configuration and can upload or download at will on 18 CWDM wavelengths in the range of 1260-1620nm, which can meet various bus and ring CWDM networking Models, such as subway communication system, metropolitan area network convergence layer, 5G fronthaul network and other application scenarios.   Features of TFF CWDM OADM  Module Automatic Optical alignment   Optical path epoxy free   Low insert loss & high isolation   TelcordiaGR-1221-Core qualified   RoHS compliant   Applications of TFF CWDM OADM Module   CWDM channel add/drop   Metro optical networks   FTTx Network   Mobile front-haul   Specifications of TFF CWDM OADM Module Parameters Unit Specification Channel Central Wavelength nm 1270,1290…1610 or 1271, 1291...1611 Channel Spacing nm 20 Pass Band@0.5dB nm ≥13 (λc±6.5nm) Channel Count CH 1 2 4 8 Insertion Loss In to Drop@λDrop dB ≤0.8 ≤1.2 ≤1.8 ≤2.8 Add to Out@λAdd dB ≤0.8 ≤1.2