Keysight Technologies N4373D, User Manual

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User Interface Reference
74
Keysight
N4373D Lightwave Component Analyzer, User’s Guide
The Measurement Parameters
Measure Mode
A 2-port network analyser can only support single-ended
measurements. Selecting the Measure Mode is only possible if
you have a 4-port network analyzer (applies to 4-port PNA only).
Differential
If you select this mode, means the LCA uses a differential
electrical input or output for this measurement.
Whether the differential signal is the input to the DUT or the
output from the DUT, this uses ports 2 and 3 of a four port
network analyzer.
Single-Ended
If you select this mode, the LCA uses a single-ended electrical
input or output for this measurement.
The electrical input to the DUT is Port A of the optical test set.
The electrical output from the DUT is port B of the optical test
set.
LCA System Settings
Wavelength (nm)
• If you have not selected to use the optional External Input,
select the wavelength of the laser source and the optical
power meter use for measurements.