7-9
IM AQ6370D-01EN
Analysis
7 
7.5  DFB-LD, FP-LD, and LED Measurement
Procedure
Light source parameters can be analyzed from the measured waveform of each light 
source (DFB-LD, FP-LD, LED). 
1.
 Press ANALYSIS. The soft key menu for analyzing measured waveforms 
appears. 
2.
  Press the ANALYSIS 1 soft key. The analysis function selection menu is 
displayed. 
3.
  Press the DFB-LD, FP-LD, or LED soft key according to the type of light source 
to be analyzed. Analysis is performed, and the results are displayed in the data 
area.
Example of a measured waveform of an FP-LD 
 
When changing the analysis parameters
4.
  Continuing on from step 3, press the PARAMETER SETTING soft key. The 
measurement parameter setting screen for the type of light source selected is 
displayed.
5.
  Move the cursor with the arrow keys or soft keys, and enter a setting value with 
the numeric key pad. To select a check box, align the cursor then press the 
SELECT soft key. 
6.
  Press the CLOSE WINDOW soft key. The measurement parameter setting screen 
closes, and the soft key menu returns to the previous stage. 
7.
  Press the ANALYSIS EXECUTE soft key. Analysis is performed according to the 
changed parameters, and the results are displayed in the data area.
Note
For details on the analysis algorithms for the  DFB-LD, FP-LD, and LED light sources, see 
appendix 3, “Details of Analysis Functions.”