d 700 nm. wavelength the period of an oscillating signal. wavelength division multiplexing the process of transmitting mul- tiple optical signals at different wavelengths over a common optical fiber. white light a term used to refer to visible light. Glossary white noise background noise generated by the movement of elec- trons. x-rays high energy waves that reside above the ultraviolet band in the frequency spectrum. 4B/5B coding a coding technique by which 4 bits are coded using 5-bit pattern. INDEX absorption, 62, 67, 90-91 cable architecture, 71-72 ADSL, 191-192 cable size, 57-58 Aerie Networks, 5 cable splicing, 12 AM, 24, 27 carrier, 42 amplifying medium, 90 carrier extension, 136-137 amplitude modulation (see AM) C-band, 66-67, 152 ANSI, 112 centralized cabling, 75-76 ATM over SONET, 182 chromatic dispersion, 45-46 attenuation, 9, 28-30, 44-45, 48, 61-64, CIE, 31 66-68, 70, 75-76, 112, 114 CIR, 2 attenuation coefficient, 45, 61 cladding, 49-51, 56-58 American National Standards Class A station, 116 Institute (see ANSI) Class B device, 116 American Wire Gauge (see AWG) collimation, 103-105 asymmetric digital subscriber line Commission Internationale de l'E- (see ADSL) clairage (see CIE) atom, 82 Committed Information Rate (see AT&T, 5, 142-146 AWG, 187 connectors, 12, 72-74 core, 52-53, 57-58 Corning Glass Works, 48, 149-150 coupling, 72-74, 79, 87, 102-108 covalent bond, 84 backbone cabling, 75-76 CPS, 21 bandwidth, 7-8, 70 critical angle, 53-57 baud, 41-42 cross-phase modulation, 149 bayonet connector, 72-73 crosstalk, 9, 181 beam diameter, 105 cycles per second (see CPS) Bel, 33-35 Bell, Alexander Graham, 33, 48 Bellcore, 182 Biconic connector, 74-75 bit, 41-42 DAACS, 170 bit error rate, 144 dark current, 101 Bragg gratings, 150-151, 178 dark fiber, 4, 71, 175 Bragg resonance wavelength, 150 Data Over Cable System Interface British Telecom, 146 Standard (see DOCSIS) broadband WDM, 147 dB, 35 Broadwing, 5 dBm, 35-38 B8ZS, 219-220 dBu, 36-38 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Ter