YOKOGAWA AQ6370D - Page 413

App-42
IM AQ6370D-01EN
Ripple
Test Band
Ripple
Minimum Level
in Test Band
Maximum Level
in Test Band
λi
nominal wavelength
Wavelength
Level [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 λi 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