YOKOGAWA AQ6370D User Manual

App-49
IM AQ6370D-01EN
Appendix
1
2
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4
5
6
7
8
9
10
11
App
Index
CROOS TALK
λ
i
Wavelength
nominal wavelength
Port
A
Port
B
Level [dB]
Test Band
Spacing Spacing
Test Band
Minimum Level
in Test Band
Maximum Level
in Test Band
Cross Talk(L)
Cross Talk(R)
Parameter
SPACING
TEST BAND
Procedure
• Perform a peak search within the range of parameter Test_Band/2 while centering on
the reference wavelength λi of each channel and obtain the peak level (LP’’i).
• Perform a bottom search within the range of parameter Test_Band/2 while centering
on the point (λi−λSP) that is obtained by subtracting the parameter SPACING from the
reference wavelength λi of each channel. Then, obtain the bottom level (LPLi).
• Perform the bottom search within the range of parameter Test_Band/2 while centering
on the point (λi+λSP) that is obtained by subtracting the parameter SPACING from the
reference wavelength λi of each channel. Then, obtain the bottom level (LPRi).
• Use the values obtained in the above procedures to obtain the left and right cross
talks (XTLi, XTRi) of each channel from the following equations:
XTLi = LP’’i − LPLi
XTRi = LP’’i − LPRi
Appendix 6 Details of Optical Filter Analysis Function

YOKOGAWA AQ6370D Specifications

General

Brand	YOKOGAWA
Model	AQ6370D
Category	Measuring Instruments
Language	English