Analyzing Traces
68
CT440
Defining the Analysis Parameters
PT Detection
: detects all peaks and troughs within the Bandwidth 1 using
Detection Threshold
, The span is then set as the distance between the first and
last peak detected for a pass band filter.
In-band and out-band average loss and ripple/slope calculations are performed
across a given calculation span centered on their respective reference points as
defined in crosstalk settings.
Calculation Span
(only if
Averaging Range
is set to
Fixed Range
)
Fixed Range in nm/THz over which calculations are done. The range is centered on the
reference points for in-band and out-band (set in
on page 66). A
range of 0 takes a single point for the calculation.
Default value: 0.1 nm
% Bandwidth
(only if
Averaging Range
is set to
% 3dB Bandwidth
)
Fraction (in %) of the bandwidth calculated in Spectral Width 1 over which calculations
are done. The range is centered on the reference points for in-band and out-band (set
in
Default value: 50 %
Detection Threshold
(only if
Averaging Range
is set to
PT Detection
)
Threshold in dB for the detection of in-band extreme peaks over which calculations are
done. The range is centered on the reference points for out-band (set in
Default: 0.1 dB
Loss
Wavelength or Frequency
0
Avg Loss IN
OUT Ref
Avg Loss OUT
OUT Ref
Avg Loss OUT
Slope
Ripple IN
Bandwidth 1
Summary of Contents for CT440 Series
Page 1: ...User Guide CT440 Passive Optical Component Tester www EXFO com...
Page 6: ......
Page 30: ......
Page 96: ......
Page 162: ......