Dense Wavelength Division Multiplexing, or DWDM, it is really important tech in data and communication world. It let many signal go through one single fiber optic cable all at same time. Like a very busy highway where car drive in different lanes without crashing eachother. Each "car" is one signal, an DWDM make sure they arrive fast and good. The thing very usefull for companies like Sino-Telecom who need send lots of info over long way without lose speed or quality
What is Dense Wavelength Division Multiplexing (DWDM) and How it Works? DWDM is method to increase data amount than an send thru fiber cables. Every signal ride on different wavelength, like different color of light. When combine together, they travel without bother each other. Think rainbow with many color, each color one separate signal. Their is device name multiplexer that mix them for sending. On other side demultiplexer split them back. So data go and come much faster that old ways. For example one message at time, DWDM an send hundred messages together. The deep packet inspection tools help alot for internet providers an business that transfer big data every day. Tech not only fast but reliable too. Even with many signal each stay clear an strong. That’s why DWDM become essential for fast internet and communication stuff.