Optical Wavelength Division Multiplexing (WDM) ring network includes multiple segment ring path and switching system

摘要

A switching element in a first node switches signals from the first to a second node to travel on a segment of the ring path or to travel on a second complementary segment of the ring path. The first node receives signals from the second node from the segment that signals from the first node are switched to travel. The second node sends signals into the ring path to travel on both segments.