Droplet SP2 Руководство - Страница 11

Просмотреть онлайн или скачать pdf Руководство для Измерительные приборы Droplet SP2. Droplet SP2 13 страниц. Beam-scan camera and software

Manual, SP2 Beam Scan Camera and Software

If the YAG laser is out of adjustment, or the user wishes to observe the mode structure, the

following procedure should be followed:

Install the camera as directed previously.

Remove the SP2 mode aperture from the holder.

Remove the two screws on the top of the coupler mount that allow access to the

adjustment screws.

Start the Visulux software.

Start the YAG laser and observe the laser beam profile.

For SP2 instruments SN 007 and above, insert a 5/64" ball driver into the access hole.

SP2 instruments below this serial number require a 1/8" ball driver. It can be useful to

use a flashlight to look into the access hole and locate the position of the adjustment

screw. For some of the SP2 instruments, the adjustment screws will be either forward

or backward of the access hole. It will always be in line along the long axis of the laser

frame. Insert the ball drivers carefully, trying not to turn the adjustment screws.

Turn the adjustment screws a minimal amount until a feeling is obtained for the

amount of adjustment to bring the laser in and out of TEM

operating in a very high-order mode and an adjustment is made, the laser can be

extinguished. Very carefully turn the screw in the reverse the direction and the laser

should restart.

After the laser is adjusted satisfactorily, remove the adjustment tools, while the laser is

still operational. This will insure that no unintended adjustment takes place while the

tools are removed.

Shut off the YAG laser, reinstall the screws on the top of the coupler mount, and install

the mode aperture.

10. For optimal instrument performance, it is recommended that the mode aperture

adjustment be checked as well as the alignment of the chamber. Please see the most

current Revision of the SP2 Operator Manual DOC-0171 for instructions on these

adjustments.

DOC-0175 Rev D

mode. If the laser is

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