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40m Log |
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Thu Feb 24 17:42:00 2011, Aidan, Update, Green Locking, 15% of end laser sideband power transmitted through cavity
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Sat Feb 26 02:33:16 2011, kiwamu, Update, Green Locking, sidebands on beatnote
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Sun Feb 27 09:43:59 2011, Aidan, Update, Green Locking, sidebands on beatnote
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Sun Feb 27 13:09:56 2011, rana, Update, Green Locking, sidebands on beatnote
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Message ID: 4363
Entry time: Sun Feb 27 13:09:56 2011
In reply to: 4361
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Author: |
rana |
Type: |
Update |
Category: |
Green Locking |
Subject: |
sidebands on beatnote |
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When Koji and I were massaging the MC, we noticed that the oscillations were at 48.5 kHz. They were pretty huge and are probably what you're seeing on the beat. My guess is that they are the PZT resonances of the PSL 2W NPRO; we need to put a notch in the FSS box - it still has the notch from the old NPRO. |