App-44
IM AQ6376-01EN
WDM FILTER BOTTOM Analysis Function
This function enables the collective analysis of multiple items of each channel via the
measured waveforms of multi-channel optical filters.
It also enables filter analysis for multi-mode waveforms, which is different from the
FILTER BOTTOM analysis.
Items for analysis
Item for Analysis
Description
Nominal Wavelength
Reference wavelength/frequency of each channel.
Bottom Wavelength / Level Peak wavelength/frequency and level of each channel
xdB Notch Width /
xdB notch width of each channel and its center wavelength/
Center Wavelength
frequency.
xdB stop-band
Wavelength width / frequency width across xdB of each channel.
xdB Elimination band
Elimination band that is xdB from the bottom within the test band of
each channel.
6Ripple
Max-min level (flatness) within the test band of each channe.
Cross Talk
Difference in level between the positions that are xnm away in each
channel.
List of Parameters
Item
Parameter
Default
Setting Range
Unit
Channel Detection,
Nominal Wavelength
ALGORHYTHM
NOTCH(B)
PEAK / NOTCH(P)/ NOTCH(B)
/ GRID / GRID FIT
-
MODE DIFF
3.0
0.1 to 50.0
dB
THRESH
20.0
0.1 to 99.9
dB
TEST BAND
0.100
0.001 to 9.999
nm
Bottom
Wavelength/Level
SW
ON
ON / OFF
-
XdB Width
Center Wavelength
SW
ON
ON / OFF
-
ALGORHYTHM
NOTCH(B)
NOTCH(P) / NOTCH(B)
-
THRESH
3.0
0.1 to 50.0
dB
XdB stop-band
SW
ON
ON / OFF
-
THRESH
-10.000
-90.000 to 30.000
dB
XdB Elimination ban
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