Transmits or emits multiple modes of light. An optical waveguide with a much larger core (50µm +) than the singlemode waveguide core (2µm to 9µm) and which permits approximately 1,000 modes to propagate through the core compared to only one mode through a singlemode fibre.
An optical fibre that has a core large enough to propagate more than one mode of light. The typical diameter is 62.5 micrometres or 50 micrometres.
See also: Optical Fibre Single Mode Fibre
