camilla.compton@LIGO.ORG - posted 15:47, Wednesday 21 June 2023 (70686)
SQZ OPO trans power increase and ASQZ data taken
Using Sheila and Vicky's instructions in 70050, Naoki and I increased the OPO trans power setpoint, opo_grTrans_setpoint_uW in sqzparams.py, from 75 to 85uW. This increased our ~1000Hz SQZ BLRMs to ~ 4dB. Re-tuned OPO temperature and SQZ angle.
Some more quiet data after some taken this morning 70668:
- 21:42 - 21:47 UTC No SQZ
- Naoki and Camilla adjusted SQZ angle from 130 to 145 degrees, plot attached.
- 22:02 - 22:07 UTC ASQZ (-65deg)
- 22:08 - 22:18 UTC FDS (+145deg)
There is 15dB between FDS and ASQZ and between NoSQZ and SQZ we've can see 3dB squeezing at 350Hz and 3.7dB at 1000Hz. DTT attached.
IFO range is currently ~132Mpc with FDS and 115Mpc with No SQZ. See attached.
Images attached to this report
