User`s guide

Performance Tests Performance Test Instructions
44 Agilent 81560A, 81561A, 81566A, & 81567A Optical Attenuator Modules, First Edition
Insertion Loss Test
Carry out the following Insertion Loss Test at 1550 nm with single mode
fibers using the equipment listed in Table 3, “Equipment Required,” on
page 41. To adapt for the straight or angled contact versions of the
attenuator use the patchcords with appropriate connectors and the
adequate connector interfaces.
1 Turn the instruments on and allow the devices to warm up
(20..30min).
2 Make sure that all your connectors are clean and undamaged.
3 Connect the equipment as shown in Figure 10.
Figure 10 Insertion Loss Reference Setup
4 Set the attenuator and the power meter to the actual wavelength of
the laser source.
5 Disable the laser source, zero the power meter and select
Autorange. Display [dB].
6 Set the power meter averaging time to 500ms.
7 Enable the laser source and set Display to Reference on the power
meter.
8 Connect the equipment as shown in Figure 11.
8163A8163A