App-40
IM AQ6370D-01EN
PEAK LVL/PEAK WL
Parameter
THRESH
MODE DIFF
Procedure
• Apply WDM analysis to the waveform data of an active trace and perform channel
detection. Note that the parameter DISPLAY MASK is not used.
• Obtain the mode peak wavelength (PEAK WL) of each channel of the active trace and
its signal optical level (PEAK LVL).
XdB Width
Peak Level
Wavelength
Level [dB]
xdB
Center Wavelength
Port A
Port B
Parameter
THRESH
Procedure
Obtain the width (xdB_Width), which is below the peak level LPi of each channel by the
parameter THRESH_LEVEL both on the left and on the right, and its center wavelength.
The algorithm for analysis is the same as the algorithm THRESH of the spectrum width.
Appendix 6 Details of Optical Filter Analysis Function
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