L

Laser A light source of low spectral width.

LED Light emitting diode. A semiconductor device used as a low power light source. The spectral width is greater than a laser.

Loose tube construction A cable in which the optic fibers are contained loosely in a tube.

Loose Tube A protective tube loosely surrounding a fiber optic cable often filled with a water blocking gel.

Light piping Use of fiber optic cables to illuminate.

Light source Source of light, which is usually modulated and terminated over a fiber optic cable. It is typically an LED or LD.

Lightguide A fiber optic cable or fiber bundle.

Lightguide cable A fiber optic cable or fiber bundle which includes a cable jacket and strength members.

Link A fiber optic cable with connectors attached to a transmitter (source) and receiver (detector).

LC Connector - LC stands for Lucent Connector

LD Laser Diode

LAN local area network

LHCP left-hand circular polarization

LiNbO3 Lithium Niobate