6-23
IM AQ6376-01EN
Analysis
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App
Index
Explanation
Setting EDFA-NF Analysis Parameters
The EDFA-NF analysis function parameters may be broadly divided into the following two
configurations.
Parameter settings may be changed as desired according to the details of the particular
analysis.
• Parameters related to channel detection (CHANNEL DETECTION SETTING)
• ASE level measurement (INTERPOLATION SETTING).
• NF computation related parameters (NF CALCULATION SETTING).
Below is an explanation of each.
See appendix 3, “Analysis Function Details” for a description of the parameters.
Parameter Settings Related to Channel Detection
These parameters are used to set the threshold level and the like for WDM channel
detection.
THRESH LEVEL
This parameter is used to set the threshold level for channel detection.
This setting determines how far down in decibels from the peak level to detect a mode
peak as a channel.
MODE DIFF
This parameter sets the minimum value for the peak/bottom difference during channel
peak detection.
If the waveform peak/bottom difference equals or exceeds this value, it is detected as a
mode peak.
THRESH LEVEL
MODE DIFF
6.8 Optical Amp Gain and NF Measurement (Except Wavenumber Mode)