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 Thu Apr 9 23:11:27 2009, rob, Summary, Locking, Laser PM to PO-DC transfer functions at multiple CARM offsets 
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 Thu Apr 9 23:20:35 2009, rob, Summary, Locking, Laser PM to REFL-DC transfer functions at multiple CARM offsets
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Fri Apr 10 03:10:08 2009, rana, Summary, Locking, Laser PM to REFL-DC transfer functions at multiple CARM offsets
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Message ID: 1465
Entry time: Thu Apr 9 23:11:27 2009
Reply to this: 1466
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| Author: |
rob |
| Type: |
Summary |
| Category: |
Locking |
| Subject: |
Laser PM to PO-DC transfer functions at multiple CARM offsets |
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I've plotted some transfer functions showing the response at POB DC to laser frequency (phase) noise. There are transfer functions for multiple CARM offsets. Basically, the transfer function looks like the DARM transfer function when the CARM is at zero offset, and is super-wonky elsewhere. POB-DC is not a good CARM signal for intermediate stages of lock acquisition in a dual-recycled interferometer. We should look into switching back to REFL-DC.
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