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ligo-ex
ligo-ds
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| Richardson Lab Experimental Log |
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Message ID: 680
Entry time: Thu Feb 5 13:49:31 2026
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| Author: |
Michael |
| Type: |
Update |
| Category: |
Interferometer Simulations |
| Subject: |
Updating Squeezing Mode Matching Logic |
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| After some tests, I have determined that the squeezer in the aLIGO katscript is currently being matched to the SRC. This logic will cause issues if the SRC mode is perturbed and no longer closely matched to arm modes. Currently, my modification to the code involves taking the arm mode incident at the ITM and propagate the beam parameter using the ABCD matrix from the ITM to the injected squeezing port. Rerunning some of the squeezing simulations for a cold interferometer, it appears the toroidal case remains the same but the nominal mirror case degrades. Is this expected when we match to the arm instead of the SRC? |
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