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CWDM Filter Tutorial

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CWDM Filter Tutorial

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Coarse Wavelength Division Multiplexing (CWDM) filters are designed to multiplex and de-multiplex wavelength signals in metropolitan, access and enterprise networks and for Cable TV applications. In addition, they are often used to provide the wireless backbone for the latest 4G wireless networks (LTE). They are a low cost approach for systems that use non-cooled laser sources, and are an alternative to more expensive DWDM components based on 100 GHz or 200 GHz channel spacing. CWDM channel filters are used to isolate a specific wavelength channel whereas CWDM channel splitters are used to isolate a band of channels.

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