[Optical Transmission Minipedia] Issue 1: What is WDM?

In the digital age, we do video calls, play games online, and binge-watch shows from the comfort of home. After passing through wireless-based stations and home broadband, how are these data transmitted to remote terminals? The optical transport network uses fiber as its transmission medium and leverages technologies such as OTN switching and Wavelength Division Multiplexing (WDM) to deliver high bandwidth, low latency, and highly reliable transmission for a wide range of services. Watch the video to learn what WDM is.
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