Optical Channel Monitors Information

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Optical Channel Monitors (OCMs) are used to measure channel power, wavelength, and optical signal-to-noise ratio (OSNR) for each channel in dense wavelength division multiplexing (DWDM) networks. They provide feedback for controlling network elements, monitor signal dynamics, determine system functionality, and identify performance change, all in order to optimize performance. OCMs are also sometimes referred to as optical performance monitors (OPMs).