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Optical Sampling Modules
Setup
Install the test hookups, and preset the main instrument controls:
1.
Install the 80C10, 80C10B, 80C10C, or 80C25GBE Optical Sampling Module
into Channel 1 of the main instrument.
Figure 31: Setup for heterodyne test
2.
Make sure the module under test is properly compensated. (See page 3,
Instrument and Module Compensation
NOTE.
To optimize performance, make sure that all connections are clean and
secure and that all components of the system are in good condition. Optical
fi
ber
can gradually degrade the system performance as it is repeatedly
fl
exed over time.
3.
Connect a PM
fi
ber-optic cable between the OPTICAL output of the Laser
1 and the PM splitter. Connect the input of the PM splitter to the OPTICAL
output of laser 1.
4.
Connect the 5% output of the PM splitter to the wavelength meter; connect
the other output of the PM splitter to the PM coupler.
5.
Connect a PM
fi
ber-optic cable between the OPTICAL output of the Laser
2 and the PM coupler. Connect the second input of the PM coupler to the
OPTICAL output of laser 2.
6.
Connect one output of the PM coupler to the O/E converter on the real-time
scope or RF spectrum analyzer; connect the other output of the PM coupler to
the 80C10, 80C10B, 80C10C, or 80C25GBE module in the main instrument.
DSA8300 Performance Veri
fi
cation
231
Содержание 80A00
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