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| 40m Log |
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 Fri Aug 18 23:59:53 2017, gautam, Update, ALS, X Arm ALS lock
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 Sat Aug 19 01:35:08 2017, ericq, Update, ALS, X Arm ALS lock 
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Mon Aug 21 23:38:55 2017, gautam, Update, ALS, ALS out-of-loop noise
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Tue Aug 22 02:19:11 2017, gautam, Update, ALS, ALS OLTFs
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Tue Aug 22 23:27:14 2017, rana, Update, ALS, ALS OLTFs
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Message ID: 13244
Entry time: Tue Aug 22 23:27:14 2017
In reply to: 13238
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| Author: |
rana |
| Type: |
Update |
| Category: |
ALS |
| Subject: |
ALS OLTFs |
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Didn't someone look at what the OLG req. should be for these servos at some point? I wonder if we can make a parallel digital path that we switch on after green lock. Then we could make this a simple 1/f box and just add in the digital path (take analog control signal into ADC, filter, and then sum into the control point further down the path to the laser) for the low frequency boost. |