Anritsu MS9740B - Page 210

Chapter 5 Measurement Functions
5-60
15. Press
f3 Write to
.
16. Press
f1 Pin
.
17. Press
Single
or
Repeat
.
The data for the trace specified at step 4 is stored.
18. Press
f3 Write to
.
19. Press
f2 Pout
.
20. Input the output light of the optical amplifier to MS9740B as shown
by the connection in Figure 5.7.5-1 (b).
If necessary, insert an optical bandpass filter between the optical
amplifier and MS9740B to remove the ASE.
21. Press
f4 Ext. Trigger Delay
.
22. Adjust the delay time to maximize the optical signal level.
23. Press
Single
or
Repeat
.
The optical amplifier optical signal and the ASE optical output data
are each stored at the trace specified at steps 5 and 6.
24. Press
f2 Parameter
.
25. Set the following items in the dialog box:
NF Select: Noise figure calculation method
Pin Loss: Calibration factor for the signal level
Pout Loss: Calibration factor for the optical level output
NF Cal: Calibration factor for the noise figure
O.BPF Lvl Cal: Attenuation from the optical bandpass filter
O.BPF BW: Optical bandpass filter bandwidth
For the input range, refer to Table 5.7.1-1.
26. Press
f7 Set
to update the value in the measurement result display
field.