Atec Agilent-81618A - Manual (Page 54)

Performance Tests Performance Tests
54
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
Noise Test
This performance test applies to Agilent 81622B/3B/4B/6B/7B/8B
Optical Heads.
N O T E You must insert a module or a blank panel in the second channel
position of the Agilent 8163A/B Lightwave Multimeter before you
perform the noise measurement.
1 Insert an Agilent 81618A or an Agilent 81619A Optical Head
Interface module into one slot of the Agilent 8163A/B Lightwave
Multimeter and connect the device under test, an 8162xA/B Optical
Head, to the Optical Head Interface module.
2 Make sure the optical input of the Device Under Test (DUT), an
8162xA/B Optical Head, is not receiving any light by placing a
plastic cap over the input adapter. Move to the DUT Power Meter
channel, press [Menu], move to <Zero>, and press Enter.
3 Press Appl, move to <Stability>, and press Enter. The Stability
Setup Screen appears.
4 Ensure that the correct channel is selected in the upcoming Module
Selection box.
5 Press [Menu] to access the Logging application menu screen.
6 Move to t>, press Enter, move to >, and press Enter.
7 Move to <AvgTime>, press Enter, move to <1 s>, and press Enter.
8 Move to <Range mode>, press Enter, move to <Auto>, and press
Enter, and press [Close].
9 Press the [Parameter] softkey, move to [TotalTime], press Enter, set
the total time to 00:05:00, which is 5 minutes, and press Enter.
10 Press the [Measure] softkey to start the measurement.
11 After the stability application has finished, press the [Analysis]
softkey, press the [more] softkey, and note [
∆P] as the noise value in
the test record.