camilla.compton@LIGO.ORG - posted 09:19, Thursday 24 July 2025 - last comment - 09:25, Thursday 24 July 2025(85957)
SQZ Dataset for 10kHz
Sheila, Camilla
Took data roughly following 83594 with the aim of saving H1:OMC-DCPD_524K_A2_IN1 data with the PD sum after TJ changed the matrix as in 85937.
DTT saved as
/ligo/home/camilla.compton/sqz/templates/dtt/20250724_SQZdata.xml screenshot attached and /ligo/home/sheila.dwyer/Noise_Budget_repos/quantumnoisebudgeting/data_files/higher_order_modes_sqzdataset.xml screenshot attached.Note that the calibration was pushed during this FIS Mid SQZ data so CAL_DELTAL should be taken with a grain of salt.
| Type | Time (UTC) | Angle | DTT Ref in SQZ | DTT ref in HOM |
| No SQZ | 15:20:00 -15:37:00 | N/A | ref 0 | ref 0,1 |
| FIS Mean SQZ (no ADF) | 15:44:30 - 15:49:30 | N/A | ref 1 | ref 2,3 |
| FIS ASQZ | 15:52:30 - 15:55:30 | (+)245 | ref 2 | ref 4,5 |
| FIS Mid + SQZ | 15:57:00 - 16:00:00 | (-) 260 | ref 3 | ref 6,7 |
| FIS Mid - SQZ | 16:30:00 - 16:03:30 | (-) 110 | ref 4 | ref 8,9 |
| FIS SQZ (tuned for high freq) | 16:06:00 - 16:09:00 | (-) 150 | ref 5 | ref 10,11 |
Checked the NLG with adjusting the OPO crystal temp the normal way, using the SEED beam.
| OPO Setpoint | Amplified Max | Amplified Min | UnAmp | Dark | NLG | OPO Gain | Note |
| 80uW | 0.09708 | 0.002293 | 0.007017 | -2.58e-5 | 13.8 | -8 | With changing OPO temp |
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Sheila and Matt point out that the HOM at 5kHz and 10kHz are clear to see, see attached.
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