Single-Mode Fiber
As the name implies, a single mode fiber only allows one ray/mode to propagate through the fiber core. This
is accomplished by shrinking the core of the fiber to dimensions comparable to that of the wavelength being
transmitted. Single mode fiber has a core dimension of ~9μm making transmitter coupling much more difficult.
Consequentially single mode fiber systems employ higher costing lasers. However, single mode fiber has an
advantage of higher capacity/bandwidth and is also much less sensitive to the effects of dispersion than multi-mode
fiber. It is also possible to incorporate wavelength division multiplexing techniques to further increase the
transmission capacity of a single-mode fiber
Evertz optical platform is compatible with both multi-mode and single-mode fiber. Our uni-directional optical
cards can transmit and receiver on both multi-mode and single-mode fibers. Any bi-directional card can transmit and
receive simultaneously on one single mode fiber. For WDM and multimode applications bi-directional cards require
two fibers, one for transmission and the other for reception.