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Mon Mar 12 01:04:18 2012, keiko, Update, LSC, RAM simulation update, RAM LSC matrix
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Mon Mar 12 18:57:58 2012, keiko, Update, LSC, RAM simulation update, RAM LSC matrix
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Wed Mar 14 16:33:20 2012, keiko, Update, LSC, RAM simulation / RAM pollution plot 
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Message ID: 6401
Entry time: Mon Mar 12 18:57:58 2012
In reply to: 6400
Reply to this: 6417
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Author: |
keiko |
Type: |
Update |
Category: |
LSC |
Subject: |
RAM simulation update, RAM LSC matrix |
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Quote: |
I calculated the DRMI RAM LSC matrix with RAM and the operation point offsets.
- configuration: C1 DRMI
- RAM is added by an Mach-Zehnder ifo placed before the PRM
- demodulation phases are optimised for each DoF
- the operation points offset from the PDH signals are calculated and added to the optical configuration as mirror position offsets
- Then the matrix is calculated with the offsets and the RAM
- The set of the scrips are found as RAMmatrix.m, normMAT.m, newGetMAT.m, on CVS/ifomodeling/40m/fullIFO_Optickle. They are a bit messy scripts at this moment.
Results:
(1) No RAM LSC matrix
|
PRCL |
MICH |
SRCL |
REFL11I |
1 |
-0.001806 |
-0.000147 |
AS 55Q |
0.000818 |
1 |
0.000474 |
AS 55 I |
1.064561 |
902.292816 |
1 |
(2) With 1% RAM mod index of PM (normalised by (1) )
|
PRCL |
MICH |
SRCL |
REFL11I |
1.000618 |
-0.001837 |
-0.000163 |
AS 55Q |
0.000919 |
1.000521 |
0.000495 |
AS 55 I |
1.169741 |
924.675187 |
1.018479
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(3) With 5% RAM mod index of PM (normalised by (1) )
|
PRCL |
MICH |
SRCL |
REFL11I |
0.999986 |
-0.001812 |
-0.000150 |
AS 55Q |
0.000838 |
1.000028 |
0.000479 |
AS 55 I |
1.084598 |
906.83668 |
1.003759
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Adding some more results with more realistic RAM level assumption.
(4) With 0.1% RAM mod index of PM (normalized by (1) )
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PRCL |
MICH |
SRCL |
REFL11I |
0.99999 |
-0.001807 |
-0.000148 |
AS 55Q |
0.000822 |
1.000002 |
0.000475 |
AS 55 I |
1.068342 |
906.968167 |
1.00559
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(5) With 0.5% RAM mod index of PM (normalized by (1) )
|
PRCL |
MICH |
SRCL |
REFL11I |
0.999978 |
-0.001810 |
-0.000149 |
AS 55Q |
0.000830 |
1.000010 |
0.000476 |
AS 55 I |
1.075926 |
904.321433 |
1.001677
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