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Figure D-5
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Appendix D. Performance Test
Test IV. Linearity and Accuracy
The following steps describe the procedure to perform the linearity
test for the HP E5574A / 81521B#001:
HP 8153A
Standard Lightwave Multimeter
Standard Optical Head
Interface Module
HP 81533B
HP 81521B #001
Optical Interface
Optical Head
HP 81000AI
Linearity Test Setup
1 Connect the equipment as shown in Figure D-5.
(If a second HP 81521B #001 Head is part of your OLA perform
the test again with this Head).
2 ZERO the HP 8153A.
a Make sure that the HP 8156A output is disabled.
b Change to measure mode by pressing M
c
Press Z
ERO
3 Ensure that the Laser Source is enabled and enable the HP
8156A output.
4 Set up the HP 8153A.
a Switch off autoranging:
Press A
UTO
b Select the –20 dBm range.
Use the U
c
Set the display to show results in dBm:
Press
B
D
204
HP 8156 Attenuator
Depending on
Option of the
Attenuator
Optical Adapter HP 81000AA
.
.
and D
keys until –20 is displayed.
P
OWN
.
M
.
ODE
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