App-32
IM AQ6370D-01EN
Automatic Parameter Setting Function
The AQ6370D provides a fit area/mask area automatic setting function.
AUTO-FIX
ASE algorithm
The fitting algorithm is LINEAR.
Since the algorithm is LINEAR, the mask area setting will not be required.
Obtain the left and right fit areas (NA_Ri, NA_Li) of each channel by using the number of
detected channels as follows.
When the number of channels “n” is 1
Internally obtain the measurement resolution of trace B and the value of the noise
measurement point NOISE AREA in accordance with the resolution, and obtain the fit
areas from the following equations.
NA_Ri = λi + NOISE AREA
NA_Li = λi − NOISE AREA
When the number of channels “n” is 2 or more
Obtain the channel spacing (spacing of λi) of each channel. Set the minimum spacing to
SPACING and also use the following to obtain the NOISE AREA.
NA_Ri = λi + NOISE AREA (i =1,2,…,n )
NA_Li = λi − NOISE AREA (i =1,2,…,n )
AUTO-CTR
ASE algorithm
The fitting algorithm is LINEAR.
Since the algorithm is LINEAR, the mask area setting will not be required.
Obtain the left and right fit areas (NA_Ri, NA_Li) of each channel by using the number
of detected channels as follows (center points between channels are treated as NA_Ri,
NA_Li.)
When the number of channels “n” is 1
Internally obtain the measurement resolution of trace B and the value of the noise
measurement point NOISE AREA in accordance with the resolution, and obtain the fit
areas from the following equations.
NA_Ri = λi + NOISE AREA
NA_Li = λi − NOISE AREA
When the number of channels “n” is 2 or more
λN1 = (3λ
1
− λ
2
)/2
i=2,3,…,n
λNi = (λ
i
+ λ
i−1
)/2
λNn+1 = (3λ − λ
n−1
)/2
Perform the calculations.
i=1,2,…,n
NA_Li = λNi
NA_Ri = λNi+1
Appendix 5 Details of Optical Amplifier Analysis Function
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