Tektronix OM4006D, Руководство пользователя

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Operating basics
num2str(Clk(4)),'_',num2str(Clk(5)),'_',num2str(round(Clk(6))),
'.mat'], Vblock)
end
%
The following example triggers on an alert, using the Alert variable existence or
the type of alert as a trigger
%
if(isfield(Alerts,'Active'))
Clk = clock;
save(['HybridCal',num2str(Clk(2)),'_',num2str(Clk(3)),
'_',num2str(Clk(1)),'_', ...
num2str(Clk(4)),'_',num2str(Clk(5)),'_',num2str(round(Clk(6))),
'.mat'], Vblock)
end
%
Using the OUI with other
receivers
The OUI software may be used to process data taken from any receiver that has
the following properties:
The signal is linear. This means that AGC ampli fi ers (if used) must be put in
fi xed gain mode.
Stable over the measurement time. The OUI software uses calibration routines
to correct for receiver optical properties such as gain, skew, and phase angle
error. If the receiver properties change signi
fi cantly between the time of
calibration and the time of using the calibration data, then you will not get
optimal results. It is still possible to assume ideal receiver properties.
To use a receiver other than the OM-Series, follow the same setup and calibration
procedure as for the OM4000 instrument with the following exceptions:
1. Disable the automatic hybrid calibration. This can be done by placing the
following statement in the Engine Command Window in the OUI prior to the
CoreProcessing statement:
pHyb = [1 i 0 0; 0 0 1 i];
2. Disable the factory frequency response equalization for the OM4000. This
can be done by placing the following statement in the Engine Command
Window in the OUI prior to the CoreProcessing statement: EqFilt(1).dt = 1;
This can go before or after the pHyb statement.
3. Follow the other calibration procedures (See page 111, Calibration and
adjustment (RT oscilloscope) .). In the case of Hybrid Calibration (See
OM4000D Series Coherent Lightwave Signal Analyzer 55