Abbreviation for front-end processor.

A principle stating that a ray of light follows the path that requires the least time to travel from one point to another, including reflections and refractions that may occur. Synonym least-time principle. [From Weik '89]

A photodetector using photogeneration of carriers in the channel region of a field-effect transistor structure to provide photodetection with current gain.

1. [An] AIS-provided restriction to prevent a program from accessing data in another user's segment of storage. [NIS]
2. [An] information-system (IS) hardware-provided restriction to prevent a program from accessing data in another user's segment of storage. [INFOSEC-99]

See optical fiber.

A device that amplifies an optical signal directly, without the need to convert it to an electrical signal, amplify it electrically, and reconvert it to an optical signal.
Note 1: One type of fiber amplifier uses a doped fiber (e.g., a fiber doped with erbium), which bears the communication signal, and which is optically pumped with a laser having a… (Read More →)

The longitudinal center of symmetry of an optical fiber, i.e., the locus of points that are determined by the centers of mechanical symmetry of the outside diameters of fiber cross sections sampled continuously along the length of the fiber.

See bandwidth (of an optical fiber).

See buffer.

See fiber optic cable.