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Wed Aug 9 12:35:47 2017, gautam, Update, ALS, Fiber ALS
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Mon Aug 14 16:24:09 2017, gautam, Update, ALS, Fiber ALS   
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Wed Aug 16 20:24:23 2017, gautam, Update, ALS, Fiber ALS   
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Wed Aug 23 17:22:36 2017, gautam, Update, ALS, Fiber ALS - reinstalled
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Fri Aug 25 15:54:14 2017, gautam, Update, ALS, Fiber ALS noise measurement  
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Fri Aug 25 17:11:07 2017, rana, Update, ALS, Fiber ALS noise measurement
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Tue Sep 26 19:10:13 2017, gautam, Update, ALS, Fiber ALS setup neatened
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Sun Aug 27 11:57:31 2017, rana, Update, ALS, Fiber ALS noise measurement
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Tue Aug 29 02:08:39 2017, gautam, Update, ALS, Fiber ALS noise measurement
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Fri Sep 1 19:15:40 2017, gautam, Update, ALS, Fiber ALS noise measurement
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Message ID: 13257
Entry time: Sun Aug 27 11:57:31 2017
In reply to: 13254
Reply to this: 13266
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Author: |
rana |
Type: |
Update |
Category: |
ALS |
Subject: |
Fiber ALS noise measurement |
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It seems like the main contribution to the RMS comes from the high frequency bump. When using the ALS loop to lock the arm to the beat, only the stuff below ~100 Hz will matter. Interesting to see what that noise budget will show. Perhaps the discrepancy between inloop and out of loop will go down. |