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The Stability Application
Applications
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
177
N O T E
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
.
N O T E
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:
–
<
Value
>, 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
.
N O T E
These settings have an effect when you choose <
dB
> as the <
Pwr unit
>. See
13
If you have chosen <
Value
> as the <
Ref Mode
>, move to <
Ref
>, press
Enter
,
enter a value for the reference, and press
Enter
.
Setting Stability Parameter
14
Move to [
Total Time
], 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