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| Richardson Lab Experimental Log |
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Message ID: 83
Entry time: Fri Apr 28 11:21:01 2023
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| Author: |
Peter |
| Type: |
Update |
| Category: |
VLC Update |
| Subject: |
Laser intensity/polarization drift measurements |
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| The Digi-key cables have arrived, and I have began implementing them in the intensity drift measurements.
There was a slight problem initially in connecting the SMA to BNC cables from the photodiode to the red pitaya, since the red pitaya was way on the other side of the lab. Cao and I connected the red pitaya to a new ethernet cable that extended far enough for the red pitaya to sit comfortably on the breadboard with the optics.
Right now the PDAs are not connected to the red pitaya. I have connected them to the oscilloscope in order to read out how much voltage they produce upon incidence of 532nm laser light. This was done in order to make sure that they do not surpass the limit of the red pitaya (+-1V). I have not acquired a value for the readout voltage of the PDAs since I had to go to class. I will gather this preliminary data soon. |
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