Table 2.3
Characteristics of various oscillators
Type of oscillating system
Fiber-optical delay line with
the modulator on LiNbO
3
crystal
Dielectric toroidal resonator from
the microwave ceramic or disk
torodial resonator from the leucosapphire
SAW resonator, on
quartz monocrystal or
LiNbO
3
Quartz piezoelectric
resonator
Power spectral density of the phase
noise at offset 1 kHz from the
operating frequency, dB/Hz
À(130/135)
À(115/145)
À(105/110)
À(100/110)
Range of relative electronic tuning
of frequency, relative units
(2/3)
 10
À3
(2/3)
 10
À1
/(2/3)
 10
À5
(2/3)
 10
À4
(2/3)
 10
À4
Long-term frequency stability, relative units
(2/3)
 10
À6
(2/3)
 10
À6
(1/2)
 10
À5
(2/3)
 10
À8
Sensitivity of generation frequency
to cyclic mechanical loads (vibrations), relative units
(1.5/5.0)
 10
À10
2.0
 10
À9
–
1
 10
À11
/1
 10
À9
Sensitivity of frequency to platform acceleration
(1 kHz), relative units
2
 10
À28
/1.5
 10
À24
–
–
3
 10
À27
/1
 10
À23
Delay line or resonator durability
to strong mechanical shocks,
N/cm
2
2000–5000
High linear topology of RF
FODL and ultralow dimensions of the micro-resonator
100–200
Low—large dimensions of the resonator 100
 100
 20 mm
2000–5000
High, small dimensions of the resonator
100
 100
 20 mm
2000–5000
High, small dimensions of the resonator
100
 100
 20 mm
2.8 Comparison of OEO Characteristics with Other Traditional Oscillators
51