Diff for "MC_model"

Differences between revisions 1 and 7 (spanning 6 versions)

Purpose:

To prepare a noise model of the MC and prepare an error budget for MC length fluctuations

Step 1. Collection of existing tools and models prepared by others.

List of previous related work and examples of noise models
- Rana's LLO MC model
  David Feldbaum
  Koji's ALS servo model

Step 2. Prepare a toy model of a generic feedback loop with two noise sources as a pedagogic exercise (Wed 15th Feb)

Step 3. Make a model for the MC -> PSL feedback loop with various sources of noise (Wed 22nd Feb)

Step 4. Measure the MC loop noise (Wed 29th Feb)

Step 5. Obtain the error budget plot. (Wed 8th March)

Step 6. Include ASC noise from the WFS loops in the model (Wed 15th March)

Step 7 Measure ASC noise in the instrument (Wed 22nd March)

Step 8 Improve the ASC servo filter shape to reduce the ASC noise injected into the MC loop. (Wed 29th March)

-  ⇤ ← Revision 1 as of 2012-02-10 03:31:42 → 
  Size: 705
  Editor: SureshdoravariATligoDOTorg
  Comment:
+   ← Revision 7 as of 2012-02-10 05:17:36 → ⇥
  Size: 1133
  Editor: SureshdoravariATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-Purpose: To prepare a noise model of the MC and prepare an error budget for MC length fluctuations
+Purpose:          To prepare a noise model of the MC and prepare an error budget for MC length fluctuations
-Line 3:
+Line 4:
-Step 1. Collect the existing tools and models prepared.
        List of previous related work
            Rana, David Feldbaum, Koji
Step 2. Prepare a toy model
+Step 1. Collection of existing tools and models prepared by others.
            List of previous related work and examples of noise models
                [[https://nodus.ligo.caltech.edu:30889/svn/trunk/rana/mat/mc/ | Rana's LLO MC model]]
 Line 8:
-Step 3. Make a model for the MC -> PSL feed-back loop with various sources of noise
+                [[target|David Feldbaum]]
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-        Noise source 1.
        Noise source 2.
        ....
+                [[https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/Green_Locking/Servo_modeling/091121/|Koji's ALS servo model]]
-Line 14:
+Line 12:
-Step 4. Measure the MC loop noise
+Step 2. Prepare a toy model of a generic feedback loop with two noise sources as a pedagogic exercise  (Wed 15th Feb)
-Line 16:
+Line 14:
-Step 5. Obtain the error budget plot.
+Step 3. Make a model for the MC -> PSL feedback loop with various sources of noise (Wed 22nd Feb)
-Line 18:
+Line 16:
-Step 6. Include ASC noise from the WFS loops in the model
+Step 4. Measure the MC loop noise (Wed 29th Feb)
-Line 20:
+Line 18:
-Step 7  Measure ASC noise in the instrument
+Step 5. Obtain the error budget plot. (Wed 8th March)
-Line 22:
+Line 20:
-Step 8  Improve the ASC servo filter shape to reduce the ASC noise injected into the MC loop.
+Step 6. Include ASC noise from the WFS loops in the model (Wed 15th March)
-Line 24:
+Line 22:
+Step 7  Measure ASC noise in the instrument (Wed 22nd March)

Step 8  Improve the ASC servo filter shape to reduce the ASC noise injected into the MC loop. (Wed 29th March)