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6
Definition of Terms
Differential EO measurements
Differential results
106
For OE measurements, the LCA sets up traces for S22, S21, S33, S31 by
default.
For EO measurement 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 (see
Figure 31
Logical Port Mapping for EO measurement
For EO measurements the LCA sets up traces for S22, S42, S33, S43 by
default.
When measuring differential devices, the network analyzer displays traces
of interest for balanced devices. These include, differential responsivity S,
common mode rejection or port imbalance.
Since opto- electronic components are unidirectional, non-reciprocal
devices, only the measurement types circled in
Keysight N4372E Lightwave Component Analyzer User's Guide
Figure 31
).
Figure 32
are relevant.
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