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Reports until 18:23, Thursday 25 May 2023
H1 SQZ
victoriaa.xu@LIGO.ORG - posted 18:23, Thursday 25 May 2023 (69914)
Changed SQZ ASC trigger to use OMC_TRANS_RF3_Q instead of AS42 sums

Daniel made model updates to h1ascsqzifo this Tuesday, adding in 2 new signals to the ASC trigmatrix (+omc_trans_rf3, +hd_diff_rf3), and he also added in model blocks to run ADS. For all the SQZ-OMC ADS new model parts, I've just accepted and monitored them (all gains are 0, etc).

Today I changed our SQZ AS42 ASC trigger to use the OMC_TRANS-CLF beatnote now available in the ASC trigger matrix, SQZ-OMC_TRANS_RF3_Q. This signal has much better SNR of the squeezer in omc transmission than the QPDs AS_A/B_RF42_SUM's we were triggering on before (green middle trace). Settings and signals attached in this screenshot, and saved to SDF. I don't think this should cause problems for locking later, but I'll watch out for it.

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