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Optical Sampling Modules
80C01-80C09, 80C11,
80C11B, 80C12, 80C12B,
80C14, and 80C15
Procedure
This procedure checks the minimum optical bandwidths and the reference receiver
frequency responses of all 80C0X Optical Sampling Modules except the 80C10,
80C10B, 80C10C, and 80C25GBE.
To test the minimum optical bandwidths and the reference receiver frequency
response of the 80C10, 80C10B, 80C10C, and 80C25GBE modules, go to
80C10,
80C10B, 80C10C, and 80C25GBE Test
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.
Equipment required
Optical attenuator, 10 dB, FC-FC, female-male connectors (item 8)
Single-mode
fi
ber-optic cable, 2 m, FC to FC connectors (item 13)
Cable, coaxial, 1 m, male to male SMA connectors (item 16)
Variable optical attenuator, Tektronix OA5002 (item 21)
Optical impulser, Calmar FPL-01 (item 22)
Optical sampling module 80C01-80C09, 80C11, 80C11B, 80C12,
80C12B. 80C14, and 80C15
Prerequisites
Before performing this procedure, be sure you have completed the
Dark level
and Vertical Equivalent Optical Noise
procedure. (See page 219,
and Vertical Equivalent Optical Noise
NOTE.
Because of interpolation errors in the FFT calculation of the impulse
response, the 80C06 module is not tested like the other modules in this section.
Instead, we integrate the impulse response to generate a step and then measure
the 10% to 90% risetime of this step response. For the 80C06, go to the Integrated
Rise Time and Aberrations. (See page 235, Integrated Rise Time and Aberrations
Check.)
224
DSA8300 Performance Veri
fi
cation
Содержание 80A00
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