Hi
there, Community friends! This time, I will share with you about FOADM. Hope
you
like it!
The FOADM is a traditional wavelength arrangement scheme that can only input or output a single wavelength via the fixed port. FOADM is used to add or drop a certain set of wavelengths dedicated to specific DWDM channels. It allows the manufacturer to customize the number of channels, filter specifications, and power equalization but require excessive transporters at each node. Besides, in FOADM systems, manual adjustments are required because channels are added or dropped. And optical-to-electrical and electrical-to-optical alterations are also necessary. Normally FOADM is built with thin-film filters (TFFs) fiber Bragg grating (FBG) and integrated planar arrayed waveguide gratings (AWG). The operational cost is high for FOADM because of the stationary nature of the arrangements and the requirement of manual changes.
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