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4.6. “PowerXP” tab
“PowerXP” tab is used to change laser power after PowerXP attenuator. Main components of
this window are described below (Figure 7).
Figure 7.
PowerXP tab.
Power meter panel
always shows existing power
after the attenuator. Percentage range is
from 0% to 100% of transmission. Zero percent means that waveplate occurs at 45 degrees
angle, beam polarization is rotated by 90 degrees and is maximally attenuated. Display reading
“100%” means that waveplate is rotated at minimum attenuation – maximum transmission
angle.
Slider
changes power from 0% to 100% (or from minimum to maximum custom units of
measure) with resolution of 0.1%. There is a “Min” and “Max” labels which when clicked drive
attenuator to minimum or maximum power accordingly.
Enter required value field
is used to manually
enter value of PowerXP power. Decimal point
symbol is “.” (dot), two decimal places can be used. Valid range is 0.00% ... 100.00% (when using
different units of measure these values will be different). After entering desired value just hit
“GO” button and value will be set.
Buttons “+” and “-”
are used to adjust power continuously according to a button sign.
Preset buttons
can be used to quickly set discreet values of output power. Button values could
be changed in
“Settings” tab.
In order to use preset buttons, go to
“Settings” tab
to enable
this function. This function is turned off by default.
Button “Zero point calibration”
is used to recalibrate physical zero point of the device from
which all movement of waveplate is calculated.
