Differences between revisions 24 and 31 (spanning 7 versions)

Mode Cleaner

The Input Mode Cleaner is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick. The input mode cleaner length is ~13.5 m (27 m round trip), the Finesse is ~1460. Cavity pole is 3.79kHz.

Beam centering

http://nodus.ligo.caltech.edu:8080/40m/2863
http://nodus.ligo.caltech.edu:8080/40m/2864
http://nodus.ligo.caltech.edu:8080/40m/2867
http://nodus.ligo.caltech.edu:8080/40m/2870

Alignment Sensing and Control

MC Wave Front Sensors

Analog circuits

[attachment:MC-Schematic.pdf common mode servo circuit board]

Documents and Links

[http://www.ligo.caltech.edu/docs/T/T020145-00.pdf LIGO-T020145-00-R], "Characterization and commissioning of digital suspensions for the 40m Mode Cleaner"
[http://www.ligo.caltech.edu/docs/T/T020147-00.pdf LIGO-T020147-00-R], "Characterizing the length sensing and control system of the mode cleaner in the LIGO 40m lab"
[RF_ASC], "Interferometer Wave Front Sensing"

-  ⇤ ← Revision 24 as of 2010-05-03 22:08:42 → 
  Size: 878
  Editor: KojiArai
  Comment:
+   ← Revision 31 as of 2011-12-19 22:05:01 → ⇥
  Size: 1029
  Editor: KiwamuIzumi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-The Input Mode Cleaner is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick.
+= Mode Cleaner =
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-The input mode cleaner length is ~13.5 m (27 m round trip), the Finesse is ~1460.  Cavity pole is 3.79kHz.
+ . The Input Mode Cleaner is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick. The input mode cleaner length is ~13.5 m (27 m round trip), the Finesse is ~1460.  Cavity pole is 3.79kHz.
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-[[Installing the Input Mode Cleaner board]]
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+Line 6:
-attachment:MC-Schematic.pdf
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-=== Beam centering ===
http://nodus.ligo.caltech.edu:8080/40m/2863
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-http://nodus.ligo.caltech.edu:8080/40m/2864
+= Beam centering =
 . http://nodus.ligo.caltech.edu:8080/40m/2863
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+Line 11:
-http://nodus.ligo.caltech.edu:8080/40m/2867
+ . http://nodus.ligo.caltech.edu:8080/40m/2864
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+Line 13:
-http://nodus.ligo.caltech.edu:8080/40m/2870
+ . http://nodus.ligo.caltech.edu:8080/40m/2867
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-=== WFS ===
[[MC WFS]]
+ . http://nodus.ligo.caltech.edu:8080/40m/2870
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-= Documents =
+= Alignment Sensing and Control =
 . [[MC_WFS|MC Wave Front Sensors]]

= Analog circuits =

 . [attachment:MC-Schematic.pdf common mode servo circuit board] 

= Documents and Links =
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+Line 27:
+ * [RF_ASC], "Interferometer Wave Front Sensing"