Laser Sources How to Use Laser Source Modules
112 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
How to Set Attenuation
The amount of power that is output from a source can be controlled. You
can use the attenuation parameter to reduce the optical power of the laser
output.
P
output
= P
source
− ATT (dB)
Where,
P
output
is the power level at the output of the module,
P
source
is the power level at the output of the source, and
ATT is the attenuation parameter.
To set the attenuation value to 2 dB:
1 Move to the laser source channel and press the [Details] softkey. You see the
screen in Figure 60 .
Figure 60 The Power Sensor Details Screen
2 Move to the [Attenuation] parameter and press Enter.
3 Enter 2.00 and press Enter.
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