[Sidd, Pooyan, Dhatri]
In the group meeting on 04/23/26, we discussed with Jon why we weren’t getting expected values for PRC Gain while running the current LLO model; specifically if there is mode mismatch. Worked more on this today.
- Looked at the mode mismatch using cavity_mismatch_table().
- Compared these finesse_ligo factory model mismatch values with those of the aLIGO katscript model.
- The latter does not have the cavity_mismatch_table(), looked at both models' mismatch values using cavity_mismatch().
- Ascertained that there is less mode mismatch in the katscript model (~10^-2) as compared to the factory model (~10^-6).
- Mismatch values are starkly different, not just for (PRC, XARM) but also for others like (OMC, XARM).
Is the issue with the locking procedure?
- Analysed the locking process for factory model and katscript model to find minor differences in the order.
- Tried applying the katscript locking function to the factory model and still seem to get the same results. (to recheck)
Further directions/steps:
- To compare radii of curvature of the optics in both models
- Check q parameter at PRM and assign it to the laser to run the model
- Generate powerup plots again and check against previous ones (with and without ring heater)
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