The Stability Application Applications
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
177
NOTE Make sure that you install Power Meters that have similar wavelength ranges.
The wavelength range of the application is the overlapping wavelength range
of all installed Power Meters
9 Move to <Range Mode>, press Enter, move to one of the following range
modes:
– <common>, you set the same <Range> for each Power Meter,
– <individual>, you must choose an individual <Range> for each Power
Meter,
– <Auto>, the auto-ranging mode, ensures that the result has a displayed value
between 9% and 100% of full scale, and
press Enter.
NOTE If you choose <Auto> and the power range changes, the time base of the stability
application will be disrupted.
10 Move to <Range> and press Enter.
11 If you have chosen <common> as the <Range Mode>, move to a range setting
and press Enter.
If you have chosen <individual> as the <Range Mode>, a screen displaying all
the selected Power Meter channels and their corresponding range settings is
displayed. For each selected Power Meter channel, press Enter, move to a
range setting, and press Enter.
12 Move to <Ref Mode>, press Enter, move to one of the following referencing
modes:
– <Val u e>, you set a reference value using <Ref>, see step 13,
– <First Sample>, the first sample of the stability function is selected as the
reference value,
– <Channel 1>, the value that Channel 1 measures is updated as the reference
value for each set of power measurements (thus, each data value for
channel 1 will be 0 dB), and
press Enter.
NOTE These settings have an effect when you choose <dB> as the <Pwr unit>. See
step 7 or step 22.
13 If you have chosen <Val ue> as the <Ref Mode>, move to <Ref>, press Enter,
enter a value for the reference, and press Enter.
Setting Stability Parameter
14 Move to [Tot al Tim e ], press Enter. [Total Time] is a value of the form
xx:yy:zz, where xx is a value in hours (maximum 23 hours), yy is a value in
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