Scenario Introduction
Suppose a building on one side of a district requires eight 10G fiber connections.
Option 1: connect all of the fibers to the switch in the central office several kilometers away. Running 8 pairs of fiber all the way across the district will be an extremely expensive proposition at the risk of fiber breakage at the same time.
Option 2: Adding WDM Mux and Demux and only requiring one pair of fibers to conduct and realize the transmission, this solution saves fiber resources substantially and offers a more cost-effective and reliable alternative compared with the abovementioned one obviously. How to achieve this? With the aid of WDM technology.
