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Keysight N4372E Lightwave Component Analyzer User’s Guide
4
Making Measurements
Measuring Electro-Optical (EO) Devices
Always perform an electrical calibration of the network analyzer or load an
existing calibration file before you make a measurement.
Options -301 or -311 are required to perform EO measurements.
For standard measurements, see
Electrical calibration for single-ended
For differential measurements, see
Electrical calibration for differential EO
For differential EO measurements, the single-ended (SE), logical port 1 is
assigned to physical port 4 and the balanced (BAL), logical port 2 is
assigned to physical ports 2 and 3.
Figure 7
Topology configuration for differential measurements
For EO measurements the LCA sets up traces for S22, S42, S33, S43 by
default. For more information, see
Before you make your first electro-optical measurement, you must switch
to EO measurement mode. You can see which measurement is currently
initialized at the top left of the trace screen.
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