YASKAWA AQ6370B - Page 359

App-47
IM 735302-01E
Appendix
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App
Index
RIPPLE
λ
i
Wavelength
nominal wavelength
Port A
Port B
Level [dB]
Ripple
Minimum Level
in Test Band
Maximum Level
in Test Band
Test Band
Parameter
TEST BAND
Procedure
• Perform the peak search and bottom search within the range of parameter
Test_Band/2 by centering on 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 (Ripple) from the following equation:
  Ripple=LP’i−LB’i
Appendix 6 Details of Optical Filter Analysis Function