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Fri Feb 24 03:58:13 2012, kiwamu, Update, LSC, Y arm + PRMI part II
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Fri Feb 24 15:01:31 2012, kiwamu, Update, LSC, Y arm + PRMI part II
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Fri Feb 24 19:18:28 2012, kiwamu, Update, LSC, Y arm + PRMI : how they should look like
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Fri Feb 24 18:37:13 2012, rana, Update, LSC, Y arm + PRMI part II
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Message ID: 6317
Entry time: Fri Feb 24 19:18:28 2012
In reply to: 6313
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Author: |
kiwamu |
Type: |
Update |
Category: |
LSC |
Subject: |
Y arm + PRMI : how they should look like |
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I calculated how the DC signals should look like in the Y arm PRMI configuration.
The expected signals are overlaid in the same plot as that of shown in #6313.
You can see there are disagreements between the observed and expected signals in the plot below at around the time when the arm is brought to the resonance.
(expected behaviors)
- TRY: At the end it should be at 1 (remember TRY is normarlized) and should not go more than that, since the power-recycling is in a weird situation and it is not fully recycling the power.
- ASDC: It should become brighter at the end because the arm cavity flips the sign of the reflected light and hence the dark port must be on a bright fringe.
- REFLDC: It will decrease a little bit because the arm cavity and MICH try to suck some amount of the power into the interferometer.

Quote from #6313 |
The figure below shows the time series of the Y arm + PRMI trail.
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