App-37
IM AQ6370D-01EN
Appendix
App
Details of Analysis
(1)BOTTOM LVL (2)BOTTOM WL
TH[dB]
(5) CROSS
TALK
(4)NOTCH WD
(3)MEAN WL
(5) CROSS
(1) Bottom level (BTM LVL): Value of level at the waveform bottom position
(2) Bottom wavelength (BTM WL): Value of wavelength at the waveform bottom
position
(3) Center wavelength (MEAN WL): Value of center wavelength at the threshold value
TH
(4) Notch width (NOTCH WD): Notch width at the threshold value TH
(5) Cross talk (CRS TALK)
In the case of PEAK / BOTTOM / BOTTOM LV algorithms
Obtain the level value at the reference wavelength (MEAN WL for PEAK/BOTTOM,
BOTTOM WL for BOTTOM LV). Also, obtain the level value at the wavelength
which is ±λCH SPACE[nm] away from the reference wavelength. Then, set the
difference in level value between the two to the cross talk.
In the case of ITU-T algorithms
Set the ITU-T grid wavelength, which is nearest the bottom wavelength, to the
reference wavelength. Set the difference between the peak level within the range
of the reference wavelength ±λSEARCH AREA[nm] and the bottom level within
the range of the position ±λCH SPACE[nm] away from the reference wavelength
±λSEARCH AREA[nm] to the cross talk.
Appendix 6 Details of Optical Filter Analysis Function
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