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THORLABS BC106-VIS User Manual

THORLABS BC106-VIS
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© 2011 Thorlabs
77Operating the Beam Profiler
A default value of 50 % indicates that only images with a half scale maximum
brightness are triggered, captured and interrogated afterwards. Dark images taken
by the camera with a maximum brightness lower than the selectedMin. AD
Saturationlevel will be ignored and not displayed. Only the detectedAD Saturation
level in % will be displayed within the Exposure Control field.
As soon asSoftware Triggeris selected theAuto Exposure Control is switched off
automatically and the desired Exposure Timeand the ‘Gain Factormust be
entered manually.
Adjust both controls so that a lowAD Saturation(in % of full scale brightness)
results when no laser pulse is captured. IncreaseExposure Timeand Gain Factor
so that a detected laser pulse exceeds the ‘Min. AD Saturationthreshold. Decrease
both controls in case the detected pulse reaches the limiting 100% saturation
because its real intensity may be considerably higher.
The status bar informs you about the activated software trigger function.
The Beam Profiler is waiting for an image reaching the selected saturation
threshold. In case the actual AD saturation level is below the threshold, the status bar
informs you about a waiting software trigger event.
For frequently occurring pulses it is recommended to adjust the Exposure Time
slightly shorter than the pulse period so that only a single pulse is captured.
Prevent ambient light from entering the input aperture and use one of the neutral
density filters for its attenuation.
Note that the image brightness of a captured single optical pulse isn’t adjustable by
the ‘Exposure Timecontrol in case the single optical pulse is shorter than the
adjusted exposure duration. Use the supplied ND filters of the filter wheel and the
Gain Factor control to adjust image brightness. In order to ensure a minimum noise
level it is recommended to keep the gain value as low as possible.
You also may activate the Beam Profilers single shot measurement mode by
clicking in the toolbar in combination with this Software Trigger. Although a
continuous image capturing is performed in the background, the first image fulfilling
the software trigger condition will stop this process and the appropriate image is
displayed and interrogated.

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THORLABS BC106-VIS Specifications

General IconGeneral
BrandTHORLABS
ModelBC106-VIS
CategoryLighting Equipment
LanguageEnglish

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