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trent.gayer@LIGO.ORG - posted 18:42, Friday 15 March 2024 - last comment - 08:41, Monday 18 March 2024(76386)
OMC finnese for different pzt voltages

Georgia, Trent

To get the finesse of the omc as a function of the pzt voltage (in order to double check the pzt voltage calibration). OMCscan.py has shortcoming in that it doesn't like when there are more than three carrier 00 peaks so to get three carrier 00 peaks that were included in my initial scan I had to seperate the data into two "bins". I had the GPS time 1393542033 with a duration of 80 to get the first two peaks and the GPS time 1393542063 with a duration of 60 to get the second and third peaks. The links of the GPS times are the corresponding pzt calibrations. The links in the finesse are the zoomed in plots for the corresponsing peaks. To get the plots we ran OMCscan.py and fit_peak_w_args.py

Field Mode q Finesse PZT Voltage [V]
Carrier 00 0 404 7.3
1 408 50.6
2 404 91.0
10 0 395 41.8
1 406 82.0
20 0 367 32.7
1 368 73.1
45 upper 00 -1 372 15.7
45 lower 00 0 356 43.7

 

 

 

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trent.gayer@LIGO.ORG - 08:41, Monday 18 March 2024 (76471)

Here is a plot of all the finesses versus the pzt voltages.

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