Definitions for "Single-mode"
Keywords:  microns, core, mode, multimode, telco
A small core fiber that allows for the propagation of only one mode.
Fiber optic cabling with a narrow core (8-9 microns) that only allows light to travel in one path (i.e. one mode).
Refers to fiber optic in which light travels in one mode (path) and has smaller core diameter. See picture. Also see fiber optic. Compare with multimode.