Lexicon - L

LAN
Local area network

Laser diode, ILD
A semiconductor device that emits high-powered, coherent light when stimulated by an electrical current. Used in transmitters for single mode fiber links.

Long wavelength
A commonly used term for light in the 1300 and 1550 nm ranges.

Loose-tube
A type of fiber optic cable construction where the fiber is contained within a loose tube in the cable jacket.

Loss, optical
The amount of optical power lost as light is transmitted through fiber, splices, couplers, etc.

L-PAS
Lens-Profile Alignment System