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Keysight N4372E Lightwave Component Analyzer User’s Guide
6
Definition of Terms
General Measurement Techniques and Considerations
The concept of lightwave component analysis is straightforward.
Measurements are made of the small-signal linear transmission
characteristics of a variety of lightwave components. A precise electrical
(signal generator) or optical (laser) source is used to stimulate the
component under test and a very accurate optical or electrical receiver
measures the transmitted signal. Since characterization over a range of
modulation frequencies is required, the frequency of modulation is
normally swept over the bandwidth of interest.
Measurements are typically comprised of the appropriate ratio of
microwave modulation current (or power) and lightwave modulation
power.
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