Page 562 - Fiber Optic Communications Fund
P. 562
Index 543
biasing, 171 transmission system design, 304–5, 307, 312–3,
channel spacing, 397–8 320, 323
differential phase-shift keying, 146–9, 147–9, MESFET (metal–semiconductor field-effect
162–3, 163 transistor), 205
field envelope, 395, 397 modulators, modulation schemes
frequency-shift keying (FSK), 145, 145–6, 163, absorption coefficient, 157, 158
164 alternate mark inversion, 139, 140, 169–72,
input power, 396–7 170–172
M-ASK, 172–4, 173–4 amplitude modulation, 144, 144, 155, 157
M-PSK, 174–82, 175–80 amplitude-shift keying, 144, 144, 158, 158–60,
outputs, 395–6, 398 160
path-length difference, 396, 398 balanced driving (push–pull operation), 154–5
phase-shift keying (PSK), 144–5, 145–6, conservation of power, 154
160–162, 161–2 d.c. extinction ratio, 156
phase shifts, 396 differential coding, 147, 147–8
power transmittances, 396, 396, 398 differential phase detection, 147
principles, 153, 153–6, 395–7, 395–8 differential phase-shift keying, 146–9, 147–9,
propagation constant, 396 162–3, 163
schematic, 395, 397 direct modulation, 149–50, 150
wavelengths, 397 double sideband with suppressed
MASER, 93 carrier(DSB-SC), 155
M-ASK, 172–4, 173–4, 180–181 duty cycle, 140–141, 143
Maurer, R., 35 electroabsorption (EA) modulators, 157, 157–8
Maxwell’s equations external modulators, 150–158, 151, 153, 157
current source, electron oscillation, 421–3 field envelope, 161
described, 9–10 frequency shift (frequency chirp), 154–5
dielectric medium propagation, 12 frequency-shift keying (FKS), 145, 145–6, 163,
electrical field formation, 9–10 164
electromagnetic wave, 10–11 half-wave voltage (switching voltage), 152
Faraday’s Law (See Faraday’s Law) line coding, 139, 140
free-space propagation, 11–12 local oscillator (LO), 147, 147
Gauss’s law, differential form of, 3, 4,6 Mach–Zehnder (MZ) interferometer
magnetic field formation, 9–10 modulators, 153, 153–6
nonlinear effects in fibers, 421–3 multi-level signaling, 172–82, 173–80
refractive index, 12 non-return-to-zero (NRZ) (See
in source-free region, 10 non-return-to-zero (NRZ))
wave equation, 11 output power, 154, 157, 159
mean partial response signals, 163–72, 164–71
current, 323 phase modulation, 144–5, 145–6, 151, 151–3
effective noise, digital signal processing, 522 phase-shift keying (PSK), 144–5, 145–6,
frequency, 308, 311 160–162, 161–2
noise power, 254–5, 316, 323 Pockels effect (linear electro-optic effect), 151
noise power, ASE, 254–5 polarity, 139, 140, 142–3, 143, 160, 182–3
OOK systems, 310–313, 369, 465–6, 490–491 power spectral density, 141–3, 143, 182–4
photocurrent, 301–3, 302–3 pulse shaping, 139–41, 140
power, FWM, 452, 452–3 radiation modes, 154
total, ASE, 256–8 raised-cosine pulse, 183–4
