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40m Log |
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Thu Apr 28 15:23:11 2016, ericq, Update, LSC, Green PDH demod lowpass
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Thu Apr 28 18:53:05 2016, rana, Update, LSC, Green PDH demod lowpass
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Fri Apr 29 16:13:36 2016, ericq, Update, LSC, Green PDH demod lowpass  
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Fri May 6 16:42:12 2016, ericq, Update, LSC, Green PDH demod lowpass 
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Fri May 6 19:08:52 2016, rana, Update, LSC, Green PDH demod lowpass
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Sat May 7 09:40:40 2016, ericq, Update, LSC, Green PDH demod lowpass
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Sun May 8 08:39:21 2016, rana, Update, LSC, Green PDH demod lowpass
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Message ID: 12111
Entry time: Fri May 6 19:08:52 2016
In reply to: 12110
Reply to this: 12112
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Author: |
rana |
Type: |
Update |
Category: |
LSC |
Subject: |
Green PDH demod lowpass |
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Seems weird to design a PD lowpass with a corner at the modulation frequency. Recall what our strategy is with the other photodetectors we use for PDH servos: bandpass, not low-pass, and the band has to be wide enough to not effect the phase of the servo. |