User`s guide

Performance Tests Performance Tests
46 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
Accuracy Test
This performance test applies to Agilent 81623B/4B/6B/8B Optical
Heads.
Test Setup
1 Make sure that cable connector, detectors and adapters are clean.
2 Connect the equipment as shown in Figure 8 .
Figure 8 Accuracy Test Setup
The linearity test must only be performed at either 1310 nm or 1550 nm.
The accuracy test must be performed in the -20 dBm range at 10.0 µW at
both 1310 nm and 1550 nm.
NOTE
Make sure that the cables to and from the attenuator are fixed on the table
and that both the optical head and the DUT are close together so that
minimum cable movement is required when connecting the cable to the
head or to the DUT.
Use 81101PC patchcord for measurement path and 81001FA connector
adapter (for the DUT) and 81000FA connector adapter (for reference power
meter) instead.
NOTE