TFF TYPE WDM

 

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 scenarios, such as G-PON/XG-PON/NG-PON2 scenarios for access networks, and CWDM/DWDM transmission for metropolitan area networks Scenario, from the BBU/DU of the 4G/5G fronthaul to the RRU/AAU.

 

TFF Type WDM FAQs

What is thin film filter (TFF) WDM? Dielectric thin film WDM is composed of thin film filter (TFF).

TFF is composed of dozens to hundreds of dielectric films of different materials, refractive index and thickness. One layer is of high refractive index and the other is of low refractive index, so it is a passband for a certain wavelength range and a stopband for another wavelength range, forming the required filtering characteristics.

 

What is WDM technology?

What are the types of technologies that can realize WDM products in the industry?

What is the classification of WDM according to the channel spacing?

 

If you want to know more kinds of optical communications products, please visit our website.

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