T FOS
Time delay of fiber-optical system
T
OF
Temperature of optical fiber in
K
T c
Laser coherence time
T F
Time constant of the RF filter
T RF, F
Time constant of the RF filter
T L0
Time constant of the laser cavity
T M
The group delay time at the output of the optical channel with
respect to the MZ input
T OF
Time constant of the optical filter
U(t)
Amplitude of RF voltage of OEO
U 0
RF oscillation amplitude
U 01 , U 01MZ
RF oscillation amplitude of the fundamental harmonic in the
electrical input of the МZ modulator
U 01C
Oscillation amplitude of the fundamental harmonic in the
coupler output
U 0M = U 0MZ
RF oscillation amplitude of the controlling (modulating);
microwave voltage at the input of the MZ modulator
U 0F
RF oscillation amplitude of the output of RF filter
U f (t)
Amplitude of RF oscillation
U M (t)
Modulation voltage of the laser diode
u(t)
Instantaneous RF voltage
u gen (t)
Instantaneous RF voltage generated by OEO
u s (t)
Instantaneous signal voltage
u 1MZ
AC voltage component of the MZ modulator
V(z)
Potential well
V gr
Group light speed
v
Frequency of optical emission
v F
Natural frequency of the optical filter
v 0
Average optical frequency
v Æ f
Two subcarriers around optical frequency
x
Modulation index x = U 01MZ /U 0π , abscissa axis
y(jω)
Controlling symbolic conductivity
Z PD
Load impedance of PD
z
Spatial coordinate
Greek Designations
α
Constant of the thin structure 1/132; constant width of the laser
spectral line
α B
Losses per the length unit in the Bragg grating
α 0e
Expansion coefficient of the nonlinear function of RF amplifier
α 0L
Expansion coefficient of the nonlinear function of laser
β B
Propagation constant
β 0e
Expansion coefficient of the nonlinear function of RF amplifier
xxx
List of Symbols