Droplet SP2 매뉴얼 - 페이지 9

{카테고리_이름} Droplet SP2에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Droplet SP2 13 페이지. Beam-scan camera and software

Manual, SP2 Beam Scan Camera and Software

The Visulux software will allow for power measurement of the YAG laser. If a power meter is

available, the laser power can be measured with the YAG power monitor and the camera

removed from the output of the YAG laser. The camera is then installed on the laser, and the

Settings toolbar opened. Then open the Calibrate Power/Energy window. Either the laser

power as measured above can be entered, or the voltage as measured from the YAG power

monitor can be entered. Click on OK, and this power reading will appear in the data table. It is

important to note that this power reading will be valid only for the same value of exposure time

as when the calibration parameters were entered. It is highly unlikely that the relationship

between power readout and exposure time setting is linear, so if the exposure time is changed

the power should be recalibrated. Any changes in the neutral-density filter will also change this

value. The exposure time is being run at or below the minimum recommended value, and this

will result in considerable variation in the power readout with the camera.

If the above tests show that the SP2 YAG laser beam is in a satisfactory mode, no further

adjustments are needed. Upgrades to the Visulux software are planned in the future to allow for

continuous logging of the data, and this may be useful while collecting data with the SP2.

Figures 4-6 show measurements of a YAG laser that is in a higher-order mode. These can appear

as either a distortion of a single spot, or even multiple distinct spots. If both the X and Y axis are

in higher-order modes, multiple spots in both directions can appear.

Figure 4: The SP2 Laser Beam in a Higher-Order Mode, as viewed in the vBeam Control Window

DOC-0175 Rev D