Difference between revisions of "User:Pranav Rathi/Notebook/OT/2010/04/01"

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(High power beam profiling)
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==Entry title==
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==High power beam profiling==
* OptoBio
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Today I discovered a new way to profile a beam at high power. I used a regular 1064nm mirror. The mirror gives a 99.99% reflection at 45 degrees. So I used the mirror in between CCD camera and the AOM at some angle less than 45. In this way transmission through the mirror can be controlled. its highest at 0 and lowest at 45. In between desired transmission can be achieved. I received a transmission of 99mW at 4.10W at the angle of roughly 15 degrees. I used the CCD with 3+3+2 OD filters. This setup does not distort the beam profile too much and it’s safe for the OD filters. We got some good pictures through this process; the link is presented below.
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<html><embed type="application/x-shockwave-flash" src="http://picasaweb.google.com/s/c/bin/slideshow.swf" width="600" height="400" flashvars="host=picasaweb.google.com&captions=1&hl=en_US&feat=flashalbum&RGB=0x000000&feed=http%3A%2F%2Fpicasaweb.google.com%2Fdata%2Ffeed%2Fapi%2Fuser%2Fanthonysalvagno%2Falbumid%2F5455280471248619521%3Falt%3Drss%26kind%3Dphoto%26hl%3Den_US" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed></html><br>
  
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Go to the link for detail view:
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[http://openwetware.org/wiki/User:Anthony_Salvagno/Notebook/Research/2010/04/01/Laser_Issues_Resolved]
  
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[[Category:1064crystalaser]]

Revision as of 13:10, 15 November 2012

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High power beam profiling

Today I discovered a new way to profile a beam at high power. I used a regular 1064nm mirror. The mirror gives a 99.99% reflection at 45 degrees. So I used the mirror in between CCD camera and the AOM at some angle less than 45. In this way transmission through the mirror can be controlled. its highest at 0 and lowest at 45. In between desired transmission can be achieved. I received a transmission of 99mW at 4.10W at the angle of roughly 15 degrees. I used the CCD with 3+3+2 OD filters. This setup does not distort the beam profile too much and it’s safe for the OD filters. We got some good pictures through this process; the link is presented below.
<html><embed type="application/x-shockwave-flash" src="http://picasaweb.google.com/s/c/bin/slideshow.swf" width="600" height="400" flashvars="host=picasaweb.google.com&captions=1&hl=en_US&feat=flashalbum&RGB=0x000000&feed=http%3A%2F%2Fpicasaweb.google.com%2Fdata%2Ffeed%2Fapi%2Fuser%2Fanthonysalvagno%2Falbumid%2F5455280471248619521%3Falt%3Drss%26kind%3Dphoto%26hl%3Den_US" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed></html>


Go to the link for detail view: [1]