App-38
IM AQ6376-01EN
WDM FILTER PEAK Analysis Function
This function enables the collective analysis of multiple items for each channel via the
measured waveforms of multi-channel optical filters.
It also enables filter analysis for multi-mode waveforms, which is different from FILTER
PEAK analysis.
Items for analysis
Item for Analysis
Description
Nominal Wavelength
Reference wavelength/frequency of each channel.
Peak Wavelength / Level
Peak wavelength/frequency and level of each channel.
xdB Width / Center Wavelength xdB width of each channel and its center wavelength/frequency.
xdB stop-band
Wavelength width/frequency width across xdB of each channel.
xdB pass-band
Pass band xdB from the bottom within the test band of each
channel.
Ripple
Max-min level (flatness) within the test band of each channel.
Cross Talk
Difference in level from the position xnm away from each
channel.
List of Parameters
Item
Parameter
Default
Setting Range
Unit
Channel Detection,
Nominal Wavelength
ALGORHYTHM
MEAN
PEAK / MEAN /
GRID/ GRID FIT
-
MODE DIFF
3
0.1 to 50.0
dB
THRESH
20
0.1 to 99.9
dB
TEST BAND
0.1
0.001 to 9.999
nm
Peak Wavelength/
Level
SW
ON
ON / OFF
-
XdB Width
SW
ON
ON / OFF
-
Center Wavelength
THRESH
3
0.1 to 50.0
dB
XdB stop-band
SW
ON
ON / OFF
-
THRESH LVL
-10
-90.00 to 30.00
dB
XdB pass-band
SW
ON
ON / OFF
-
THRESH
3.0
0.1 to 50.0
dB
TEST BAND
0.20
0.01 to 99.99
nm
Ripple
SW
ON
ON / OFF
-
TEST BAND
0.20
0.01 to 99.99
nm
Cross Talk
SW
ON
ON / OFF
-
SPACING
0.80
0.01 to 99.99
nm
TEST BAND
0.20
0.01 to 99.99
nm
Appendix 6 Details of Optical Filter Analysis Function