Anritsu MS9740B - Page 207

5.7 Measuring Optical Amplifier
5-57
5
Measurement Functions
17. Input the output light of the optical amplifier to MS9740B as shown
by the connection in Figure 5.7.4-1 (b).
18. Adjust the polarization controller to maximize the optical output
level.
19. Press
Single
or
Repeat
.
The data for the trace specified at step 5 is stored.
20. Press
f3 Write to
.
21. Press
f3 Pase
.
22. Adjust the polarization controller to minimize the optical output
level.
23. Press
Single
or
Repeat
.
The data for the trace specified at step 6 is stored.
24. Press
f2 Parameter
.
25. Set the following items in the dialog box:
NF Select: Noise figure calculation method
ASE Fitting: Fitting method for the ASE level
Fitting Span: Wavelength width targeted for the ASE level
calculation
Masked Span: Wavelength width excluded from the ASE level
calculation
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
Pol Loss: Attenuation from the analyzer
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.