Anritsu MS9740B - Page 234

Chapter 5 Measurement Functions
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14. Input the output light of the optical amplifier to MS9740B as shown
by the connection in Figure 5.8.5-1 (b).
15. Press
Single
or
Repeat
.
The data for the trace specified at step 5 is stored.
16. Press
f2 Channel Parameter
.
17. Set the following items in the dialog box:
S.Level: Set the level range for detecting the signal.
Search Threshold: Set the threshold value for detecting the peak for
the next highest and subsequent levels after the
maximum level’s peak.
Wavelength-Detection Type:
Set the detection method for the signal
wavelength.
Wavelength-Threshold Cut Level:
Set the level range from the maximum peak for
detecting peaks in a signal.
For the setting range, refer to Table 5.8.2-1.
18. Press
f7 Set
.
19. Press
f3 Opt Amp Test Parameter
.
20. Set the following items in the dialog box:
Detection Type: Sets Area or Point.
Area: When Area is set at Detection Type, sets the
fitting curve and measurement area.
Point: When Point is set at Detection Type, sets the
measurement position.
Fitting Curve Display:
This sets whether to display or not display the
fitting curve.
NF Select: This sets the NF calculation method.
Actual Resolution: This sets the NF calculation method.
Pin Loss(Offset): This sets the calibration factor for signal level.
Pout Loss(Offset): This sets the calibration factor for the optical
signal output level.
O.BPF Lvl Cal: This sets Attenuation from the optical bandpass
filter.
O.BPF BW: This sets optical bandpass filter bandwidth.
NF Cal: This sets the NF calibration factor.
For the input range, refer to Table 5.8.3-1.