App-42
IM AQ6376-01EN
Ripple
Test Band
Ripple
Minimum Level
in Test Band
Maximum Level
in Test Band
λ
i
nominal wavelength
Wavelength
Le
ve
l [
dB
]
Port A
Port B
Parameter
TEST BAND
Procedure
• Perform the peak search and bottom search within the range of parameter Test_
Band/2 by centering on the reference wavelength
λ
i of each channel, and obtain the
peak level (LP’i) and the bottom level (LB’i).
• Use the peak level (LP’i) and bottom level (LB’i) obtained in the above procedure to
obtain the ripple from the following equation:
Ripple = LP’i − LB’i
Appendix 6 Details of Optical Filter Analysis Function