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MEMSnet Home: MEMS-Talk: output measurement
output measurement
2009-03-01
vaibhav mathur
2009-03-02
Brad Cantos
2009-03-02
Oliver Horn
output measurement
vaibhav mathur
2009-03-01
hi all,

I am trying to monitor the laser intensity at the output end of my MEMS device.
I have a problem as I have to be able to see the output on a ccd camera, and
measure the intensity at the same time. Currently, I first align using a ccd
camera, remove it from the beam path, introduce a photodetector in the beam
path,  measure intensity, repeat the steps again and again for each measurement.
This is an extremely tedious and time consuming process. Any suggestions on kind
of optics I can use two get both measurements at the same time
(CCD+photodetecotr) will be appreciated.  I monitor the intensity at high
frequencies of order 300Khz, thus have to use a silicon photodetector, CCD
camera is only for visual alignment
regards

Vaibhav Mathur
reply
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