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Jared lab notebook: Difference between revisions
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--[[User:Jmiles2|Jmiles2]] ([[User talk:Jmiles2|talk]]) 10:37, 26 June 2014 (CDT)
I think noise might be a problem. I started looking at the fluorescence from the MOT with a photodiode. The signal oscillates at around 120 Hz, the same frequency that the feedback to the laser piezo is oscillating, I think this is changing the frequency of the beam slightly and a different number of atoms is loaded into the MOT. It would also change the number of atoms I detect in the FORT because I use the same laser to look at the fluorescence of the FORT atoms with a photodiode.
--[[User:Jmiles2|Jmiles2]] ([[User talk:Jmiles2|talk]]) 15:56, 27 June 2014 (CDT)
Noise in the FORT atoms go down when I turn up the gain on the MOT seed laser. There is a standing wave, but I can't get a good plot that shows more than one peak. I think this is the same problem I've had before but never quite figured out what was wrong.
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