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 Fri Sep 18 13:33:17 2015, ericq, Update, LSC, Fast ALS troubles - Noise at 36kHz 
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 Fri Sep 18 16:08:41 2015, ericq, Update, LSC, Fast ALS troubles - Noise at 36kHz
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Fri Sep 18 19:15:35 2015, rana, Update, LSC, Fast ALS troubles - Noise at 36kHz
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Tue Sep 29 16:52:49 2015, ericq, Update, LSC, Fast ALS troubles - unknown zero
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Tue Sep 29 18:03:11 2015, rana, Update, LSC, use LISO
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Wed Sep 30 10:00:02 2015, ericq, Update, LSC, used LISO
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Fri Oct 2 03:29:16 2015, ericq, Update, LSC, Fast ALS progress - AO path crossed over, but no high BW
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Fri Oct 9 13:31:21 2015, ericq, Update, LSC, ALS plant shape
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Fri Oct 9 14:50:18 2015, Koji, Update, LSC, ALS plant shape
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Fri Oct 9 16:23:25 2015, ericq, Update, LSC, ALS plant shape
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Tue Oct 13 16:28:21 2015, ericq, Update, LSC, Fast ALS pomona
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Message ID: 11621
Entry time: Fri Sep 18 16:08:41 2015
In reply to: 11620
Reply to this: 11622
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| Author: |
ericq |
| Type: |
Update |
| Category: |
LSC |
| Subject: |
Fast ALS troubles - Noise at 36kHz |
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I looked at REFL11 and REFL55 during PRMI lock - the line is there.
In fact, it is even visible in REFL11 I from a single bounce off of the PRM (ITMs misaligned).
This led me to look at the IMC error point (via the OUT2 on the servo board, no compensation for the input gain). Also there!
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