On February 11, 2018 at 21:37, lippavisual said...
One fiber strand can only get you 1 way traffic, at least until someone invents a “ F$&@ all Law’s of physics” type gizmo.
Two strands of fiber being used is the norm. Same reasoning why 2 pair wire or other combinations of wire are required for 2way communications over copper.
Just wanna chime in here and say that there are actually a number of cool products that only utilize a single fiber, yet get bidirectional communication through use of optical multiplexing. Basically, different wavelengths of light are reflected onto the same line, each independent channels and not interfering with each other.
