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Thu Mar 21 09:53:46 2013, Annalisa, Update, Locking, Finding the beat note
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Thu Mar 21 10:19:28 2013, Koji, Update, Locking, Finding the beat note
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Thu Mar 21 13:11:42 2013, Annalisa, Update, Locking, Finding the beat note
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Thu Mar 21 13:50:08 2013, Jamie, Update, Locking, incident angles
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Thu Mar 21 14:02:45 2013, Annalisa, Update, Locking, incident angles
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Fri Mar 22 23:23:38 2013, Annalisa, Update, Locking, Beat note still missing
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Message ID: 8323
Entry time: Thu Mar 21 10:19:28 2013
In reply to: 8322
Reply to this: 8327
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Author: |
Koji |
Type: |
Update |
Category: |
Locking |
Subject: |
Finding the beat note |
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Give us more info on the elog:
What PD are you using? How much power the beams on the recombining BS are? What kind of BS is it?
How are you looking for the beat note? (on the scope? or spectrum analyzer?)
What was the scanned temp range?
Three points to be checked:
- Polarization
- Alignment
- Temperature |