10
1)
2)
3)
OF
OF
A 2
A 1
8
6
4
2
v 0 – 2f 0 v 0 – f 0
v 0 + f 0 v 0 + 2f 0
v 0
v 0 – 2f 0 v 0 – f 0
v 0 + f 0 v 0 + 2f 0
v 0
v 0 – 2f 0 v 0 – f 0
v 0 + f 0
f 0
2f 0
v 0 + 2f 0
v 0
10
Optical Spectrum
S(v)
Optical Spectrum
S(v)
Optical Spectrum
S(v)
8
6
4
2
10
Optical frequency v
a)
d)
c)
b)
8
6
4
2
10
1)
2)
3)
OF
A 2
A 1
8
6
4
2
v 0 – 2f 0 v 0 – f 0
v 0 + f 0 v 0 + 2f 0
v 0
v 0 – 2f 0 v 0 – f 0
v 0 + f 0 v 0 + 2f 0
v 0
v 0 – 2f 0 v 0 – f 0
v 0 + f 0 v 0 + 2f 0
v 0
10
Optical Spectrum
S(v)
Optical Spectrum
S(v)
Optical Spectrum
S(v)
8
6
4
2
10
Optical frequency v
8
6
4
2
1.0
0.8
0.6
0.4
0
25
E 0L
K m E 0L
f
f
K m E 0L
E PD
v 0L
20
15
10
–1.0 –0.5
0.5 1.0
E PD
K m E 0L
K m E 0L
K m E 0L E PD
v 0L – f
v 0L + f
v 0L + f
v 0L
K m E 0L
–1.0 –0.5
0.5 1.0
–1.0
15
10
–0.5
0.5 1.0
10
RF frequency f
RF Spectrum
S(f )
20
f 0
2f 0
1.0
0.8
0.6
0.4
0.2
0
10
RF frequency f
RF Spectrum
S(f )
20
e)
f)
g )
Fig. 3.11 Selection of optical harmonics in the spectrum of output emission intensity of laser
oscillations with the help of narrowband (a) and the rejection (b) optical filters, and relatively,
spectra of current oscillations in the PD load (c) and (d). The vector presentation of EMF amplitude
summation on PD: without selection of the optical harmonic (e), with summation of two side
harmonics at carrier suppression (f), with summation of carrier and one of side harmonics (g)
3.2 Methods of Modulation and Heterodyning of Laser Emissions at DM and MZ. . .
97