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Entry   work with HV voltage on the Laselock, posted by Ronic Chiche at ThomX igloo about lasers and optics | detectors and electronics 
    Reply   work with HV voltage on the Laselock, posted by Ronic Chiche at ThomX igloo about lasers and optics | detectors and electronics 
    Reply   work with HV voltage on the Laselock, posted by Ronic Chiche at ThomX igloo about lasers and optics | detectors and electronics 
Message ID: 234     Entry time: Tue Sep 5 17:59:24 2023     In reply to: 233
 Author: Ronic Chiche 
 Status: Fixed 
 Type: issue 
 Category: lasers and optics | detectors and electronics 
 Location: ThomX igloo 
 Title: work with HV voltage on the Laselock 

Yesterday, I checked the 2 output HV channels of the LaseLock : they work properly but the noise is bigger than the low voltage outputs
~ 1mV rms on 0-10V outputs
~ 8 mv rms on 0-100V output

Ronic Chiche wrote:

presently, the voltage on the laser PZT is 0-10V, but during the several runs we did, this voltage is too low to compensate low frequency fluctuations:
we need to change often the motors position implying a cavity lock loss.

we have to check if running the laser PZT with the HV output of the Laselock is possible without too much additionnal noise.
=> it can be done simultaneously with the fast feedback loop implementation, which has to be done.

 

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