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Making Measurements
102
3 Select the wavelength at which you are testing.
If you want to use external laser sources, select the optional
External Input, and enter the wavelength of the external
source.
4 Set the power of the Laser to be applied to the test circuit.
If you are using the external source input, enter the value for
the power emitted from the LCA optical output port. (Use an
external power meter, or the LCA power meter).
5 If you are running measurements in an unstable
environment, or need extra accuracy or long term stability,
make sure to select "EverySweep" or "Continuous" for
Modulator Optimization.
Please note, optimizing every sweep adds about 1 second to
each measurement. Continuous optimization uses a pilot
tone. Measuring with or without the pilot tone may affect
your measurement.
We also recommend, if you are using continuous
optimization, that you also perform a "User Calibration".
The system is calibrated with a default setting. You can
determine the default setting by going to the tools page,
choosing "Default", and pressing "Run".
6 Select the Optical Input you are using.
7 If you have optical components, such as attenuators, fiber
optic cables or splitters, between the optical input and
output and your device under test, open and enable the
Optical Path Deembedding.
Here you can enter the parameters for the optical path
directly.
Keysight N4373D Lightwave Component Analyzer, User's Guide
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