6-21
IM AQ6376-01EN
Analysis
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App
Index
Analysis of optical amp gain and NF is performed after measuring the signal light going
into the optical amp and the output light leaving the optical amp.
Acquiring Waveforms Required for Analysis
The following configuration and general procedure is used to measure optical amp gain
and NF.
Signal light measurement configuration
Multi-channel light source
AQ6376
MUX
Output light measurement configuration
Multi-channel light source
AQ6376
MUX
Optical amplifier
Writing the Waveform of the Signal Light Input to the Optical Amp on Trace A
1.
Input the signal light sent to the optical amp into the instrument.
2.
Press
TRACE
followed by the
ACTIVE TRACE
soft key, then select A.
3.
Press the
VIEW A
soft key and select
DISP
.
4.
Press the
WRITE A
soft key. Trace
A
enters write mode.
5.
Measure the signal light waveform according to measurement conditions matching
the signal light waveform.
(For details on the measuring procedure, see chapter 4, “Measurement.”)
6.
Press the
FIX A
soft key under
TRACE
. Trace
A
enters fixed mode.
Note
If all traces from trace A to trace G have been set to fix mode (FIX) as a result of this action, a
warning is displayed. However, this does not pose a problem because trace B is set to write
mode in the next step.
6.8 Optical Amp Gain and NF Measurement (Except Wavenumber Mode)