EOMs Operating Manual
Ref. Ed. 0
–
08/02/2021
20
3.3
Half-wave voltage (V
) at low frequencies (kHz)
The half-wave voltage (V
), is the voltage needed to induce a
phase shift on the optical wave. With
the intensity modulator, which is a two-wave interferometer, it corresponds to the driving voltage
necessary to vary the optical output from the maximum of power to the minimum of power (see
the Modulator Transfer Function, MTF):
Intensity Modulator Transfer Function
Fig. 30
3.3.1
V
DC
MEASUREMENT SET UP
(DC
ELECTRICAL PORT
)
Fig. 31
