Aiming at the problems of traditional Frequency Division Multiplexing (FDM) sensing technology based on Frequency-Modulated Continuous Wave (FMCW), such as complex system structure, high implementation cost, high computational complexity of demodulation algorithms, and limited real-time. Aiming at the problems of traditional Frequency Division Multiplexing (FDM) sensing technology based on Frequency-Modulated Continuous Wave (FMCW), such as complex system structure, high implementation cost, high computational complexity of demodulation algorithms, and limited real-time. In telecommunications, frequency-division multiplexing (FDM) is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal. Mode division multiplexing (MDM) enables signals to be transmitted in different orthogonal modes in a single waveguide core. In FDM, we can observe a lot of inter-channel cross-talk because in this type of multiplexing the bandwidth is. We produce fiber-coupled Wavelength-Division Multiplexing (WDM) devices that combine (Mux) or separate (DeMux) multiple wavelength channels into or from a single optical fiber. Two types are available: integrated arrayed waveguide gratings (AWG), offering low cost, compact size, and precise ITU. Corning has a wide variety of hardware solutions to choose from to fit your cabling needs.