3-2
PN: 10410-00742 Rev. H
O/E Module MN4765B OM
3-2 E/O Measurements
Operation
Required Equipment
•
Vector Network Analyzer MS464xB, MS46122A/B, MS46322A/B or
MS4652xB models can be used, but the maximum frequency allowed
will be limited by the frequency range of the VNA model. The
MN4765B-0110 (110 GHz option) is typically used with a VectorStar
ME7838X broadband system.
•
Polarization Controller (recommended)
•
Laser light source with the appropriate wavelength for the user
specified MN4765B option:
•
850 nm for Option 40
•
850 nm or 1060 nm for Options 42 or 43
•
1550 nm for Options 43, 70, 72, or 110
•
1310 nm for Options 43, 71, or 72
•
Broadband Modulator (for O/E measurements) (The MN4775A can be
used for the laser, polarization control and broadband modulator
portions of the setup. It is available in three wavelength models:
850 nm (40 GHz), 1310 nm (70 GHz), and 1550 nm (70 GHz)).
•
Modulator Bias Controller
•
Optical Patch Cord
Measurement Steps
1.
Perform a 12-term microwave calibration over the bandwidth of interest
at the calibration reference planes to remove the response of the VNA
and the cables from the measurement. Save the 12-term calibration for
later recall.
2.
For VectorStar VNAs, press the
Measurement
key on the VNA front
panel. Select the
Perform Optical Measurements
button, then select
E/O
Measurements
.
For ShockLine VNAs, from the
Measurement
menu, select the
O/E-E/O
button. From the
O/E-E/O
menu, select
E/O Measurements
.
The dialog shown in
appears. Follow the
instructions to load the 12-term electrical calibration.
3.
Load the s2p characterization file of the MN4765B. This removes the
response of the photodiode that will be used for the E/O measurement.
