O/E Module MN4765B OM
PN: 10410-00742 Rev. H
3-3
Operation
3-2 E/O Measurements
4.
Connect the modulator DUT to the MN4765B photodiode in series as
shown in
Figure 3-1.
E/O Measurement Dialog
Note
To achieve the maximum signal level at the input of the
photodiode, a polarization controller is recommended to adjust
the polarization of the laser input to the modulator DUT. This
improves the signal-to-noise ratio of the measurement.
Note
Particularly with the longer wavelengths, multimode fibers are
possible (e.g., coming from a VCSEL). These can be used with
the MN4765B (which is single-mode internally) but the dynamic
range will be reduced and the use of a lower IFBW during the
measurement may be required.
VNA
