Step 11. Move the cursor to GENERATE E/O S2P CHAR-
ACTERIZATION (MODULATOR STD) (menu
DE2, left) and press Enter. This will generate an S2P
characterization file for the modulator.
Once the modulator characterization S2P file has
been generated, it can be used as a transfer standard
for the photo-receiver DUT measurement.
After the characterization file has been saved, the
VNA returns to the O/E measurement menu shown
in Figure 8-38, below.
Step 12. Press the Appl key, select O/E MEASUREMENT.
Again, then press Enter. This recalls menu DE2 (top
left).

37xxxE OM 8-71

MEASUREMENTS OPTICAL APPLICATION
MENU DE2
O/E MEASUREMENT
DE-EMBED O/E S2P
(DETECTOR STD)
GENERATE E/O S2P
CHARACTERIZATION
(MODULATOR)
MEASURE O/E DUT
(DETECTOR)
PRESS <ENTER>
TO SELECT
PRESS <CLEAR>
TO ABORT
Figure 8-38. O/E Measurement Menu