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 Thu Dec 4 17:42:23 2008, caryn, Update, IOO, drum modes observable without excitation 
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 Fri Dec 5 09:29:59 2008, rana, Update, IOO, drum modes observable without excitation
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Fri Dec 5 21:31:11 2008, Yoichi, Update, IOO, drum modes observable without excitation
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Message ID: 1179
Entry time: Fri Dec 5 09:29:59 2008
In reply to: 1176
Reply to this: 1182
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| Author: |
rana |
| Type: |
Update |
| Category: |
IOO |
| Subject: |
drum modes observable without excitation |
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Not sure what the y-scale is since there aren't any y axis labels in the plot, but it seems like we
now get an SNR of a ~few with a BW of 0.1 Hz. IN principle, the frequency noise out of the PSL ought
to be limited by the VCO phase noise at these frequencies (sort of) so the broadband MC_F level
is very roughly equal to 20-100 mHz/rHz.
Since dnu = dL*(c/lambda)/L_MC, the thermal peaks have a height of ~10^-15 m_RMS. We (Caryn) should check
that these numbers are true and then see if this is the correct amount of energy for thermally excited
mirror modes. |