1. Introduction To Dense Wave Division Multiplexing (DWDM)
Introduction The Need For Fiber The first generation optical networks, circa 1960, used single wavelength transmission and electrical-based switches for routing and processing. ... It was based on packets, which are small fragments of data with individual control information. ... Data, voice, and video applications were being developed for computers. ... WDM WDM is how the data is presented onto the fiber. ... Each different wavelength, or color, is a data path through the fiber. ...
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