Definition

multimode fiber

In optical fiber technology, multimode fiber is optical fiber that is designed to carry multiple light rays or modes concurrently, each at a slightly different reflection angle within the optical fiber core. Multimode fiber transmission is used for relatively short distances because the modes tend to disperse over longer lengths (this is called modal dispersion) . For longer distances, single mode fiber (sometimes called monomode) fiber is used.

Multimode fiber has a larger core than single mode.

Related glossary terms: small form factor (SFF), gigapop (gigabit point-of-presence), small form-factor pluggable (SFP), DTMF (dual tone multi frequency), carrier network, dark fiber, Router, V.xx, terminal adapter (TA), port

Contributor(s): Mario Grullon Damian

This was last updated in September 2005

Posted by: Margaret Rouse

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