26 Keysight N778xC Series Polarization Instruments User’s Guide
2 Getting Started
• As a polarization analyzer, the instrument provides truly high-speed
capabilities: Up to 1 M samples can be taken with a sample rate of up
to 1 M samples per second.
• As fast-switching polarization controller for multi-channel,
single-sweep wavelength dependent PDL measurements in
combination with a tunable laser, a multiport power meter and the
photonic application software suite (PAS). See the PAS literature for
details: www.keysight.com/find/n7700
Many applications of the N7786C are supported by the built-in user
interface. Programming uses a new SCPI command set and the instrument
is addressed as a VISA resource.
For further details on its application and key features, refer to the product
datasheet available on www.keysight.com.
N7788C Optical Component Analyzer
The N7788C optical component analyzer provides both polarization
control and analysis functions in one instrument for flexible laboratory use.
The N7788C is especially used in combination with a tunable laser for
measuring how an optical component changes the SOP of a signal. This
measurement uses the unique single-sweep polarization dependent
method to determine the parameters polarization mode dispersion (PMD)
or differential group delay (DGD) and polarization dependent loss (PDL),
based on a generalization of the standardized Jones Matrix Eigenanalysis
method (JME).
For these spectral measurements of polarization dependent loss and
dispersion, the N7788C is combined with a tunable laser and a new N7700
software engine.
Parameters provided by this measurement include:
•DGD/PMD
•PDL
•Power/loss
• TE/TM-loss
• Jones matrices
• Mueller matrices
• 2nd-order PMD (depolarization + PCD)
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