Fiber Optic Reference Guide: A Practical Guide to Communications Technology, Third Edition
This guide is an ideal primer for newcomers to the fiber optics industry as well as a useful reference guide for seasoned fiber optics veterans.
TABLE OF CONTENTS Fiber Optic Reference Guide: A Practical Guide to Communications Technology, Third Edition
Appendix B: Glossary of Terms
- A
- Abbreviation for Ampere or Amp. The steady current produced by one Volt across a resistance of one Ohm.
- Absorption
- That portion of optical attenuation in optical fiber resulting from the conversion of optical power to heat, caused by impurities in the fiber such as hydroxyl ions.
- AC
- Abbreviation for alternating current. An electric current that reverses its direction at regularly recurring intervals
- Acceptance Angle
- The half-angle of the cone within which incident light is totally internally reflected by the fiber core. It is equal to sin ?1(NA).
- Active Device
- A device that requires a source of energy for its operation and has an output that is a function of present and past input signals. Examples include controlled power supplies, transistors, LED's, amplifiers, and transmitters.
- ACTS
- Abbreviation for advanced communications technologies and services. A program for developing long-haul telecommunications networks.
- A/D or ADC
- Abbreviation for analog-to-digital converter. A device used to convert analog signals to digital signals.
- Add-Drop Multiplexer (ADM)
- A device which adds or drops signals from a communications network.
- ADSL
- Abbreviation for asymmetric digital subscriber line.
See also DSL.
- Aerial Plant
- Cable that is suspended in the air on telephone or electric utility poles.
- AGC
- Automatic gain control. A process or means by which gain is automatically adjusted in a specified manner as a function of input level or another specified parameter.
- AM (Amplitude Modulation)
- A transmission technique in which the amplitude of the carrier is varied in accordance with the signal.
- Amplified Spontaneous Emission...
A
Copyright Force, Incorporated 2002 under license agreement with Books24x7
