HP E5970A User Manual page 33

h. Set the averaging time,
T,
on the8153A power meter to 100ms.
i. With the laser source disabled, zero the 8153A power meter, by pressing
IZero).
j.
Enable the Laser source and wait 1 minute for it to stabilize.
2. Set the -20dBm reference level.
a. On the 8153A, press
(dBm/Wj
until the 8153A is measuring in dBm.
b. Set the 8156A to the attenuation that gives -20.00dBm on the 8153A
display.
i. Note the setting of the 8156A for setting 1 in the test report.
c. On the 8153A, press (Dlsp-Ref).
d. On the 8153A, press
(dB).
3. Measure the other reference power levels.
a. On the 8156A set the attenuation to give
+
16.00dB on the 8153A.
i. Note the setting of the 8156A for setting 2 in the test report.
b.
On 8156A set attenuation to give
+
8.00 dB on the 8153A display,
i. Note the setting of the 8156A for setting 3 in the test report.
c. On 8156A set attenuation to give
-
14.00 dB on the 8153A display,
i. Note the setting of the 8156A for setting 4 in the test report.
d. On 8156A set attenuation to give
-
33.00 dB on the 8153A display,
i. Note the setting of the 8156A for setting 5 in the test report.
4. Connect the DUT as shown in the figure:
HP 8lOOSAA
Test Setup for the DUT Measurement (1310f1550nm)
a. Make sure the E5970A (DUT) has warmed up (the E5970A has warmed
up
after it performs its first zero operation).
b. Set the DUT:
X
=
1310 nm
Units
=
dBm
5. Measure the DUT
a. Set the 8156A to the value noted for setting 1.
Performance Test 0.3