6.5.11 PSD of the Phase Noise in OEO MZ with RF FODL
and MZ Modulator Taking into Account the laser, PD
and NA Noises
In this section, we derive the formula for PSD of the phase noise in OEO MZ taking
into consideration of the detected laser noises, the PD output noises and the input NA
noises. For this, we examine expressions (6.50), (6.52), (6.26), (6.27) and (6.56)
taking into account PSD of PD and NA.
The circuit of OEO MZ with account of RF noise sources is presented in
Fig. 6.23a: the detected QWLD noise (1), the own noise of PD (2), noises in the
Fig. 6.22 Calculated AFC of the differential and combined RF FODL with two, three, and four
FOS of different geometrical length, which are used in OEO for suppression of adjacent types of
oscillations, which are not attracted to generation. Here K LZ ¼ |K FODL |, F(T 2 À T 1 ) ¼ F
(T 2FOS À T 1FOS )
330
6 Operation Analysis of Optoelectronic oscillator (OEO) with External. . .
and MZ Modulator Taking into Account the laser, PD
and NA Noises
In this section, we derive the formula for PSD of the phase noise in OEO MZ taking
into consideration of the detected laser noises, the PD output noises and the input NA
noises. For this, we examine expressions (6.50), (6.52), (6.26), (6.27) and (6.56)
taking into account PSD of PD and NA.
The circuit of OEO MZ with account of RF noise sources is presented in
Fig. 6.23a: the detected QWLD noise (1), the own noise of PD (2), noises in the
Fig. 6.22 Calculated AFC of the differential and combined RF FODL with two, three, and four
FOS of different geometrical length, which are used in OEO for suppression of adjacent types of
oscillations, which are not attracted to generation. Here K LZ ¼ |K FODL |, F(T 2 À T 1 ) ¼ F
(T 2FOS À T 1FOS )
330
6 Operation Analysis of Optoelectronic oscillator (OEO) with External. . .