Differences between revisions 31 and 36 (spanning 5 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.

Locking

Lock Settings for IMC. This is required for autolocker to catch lock.

IMC Lock settings

Mode Cleaner Model

MC model

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

common mode servo circuit board

Documents and Links

LIGO-T020145-00-R, "Characterization and commissioning of digital suspensions for the 40m Mode Cleaner"
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 31 as of 2011-12-19 22:05:01 → 
  Size: 1029
  Editor: KiwamuIzumi
  Comment:
+   ← Revision 36 as of 2022-08-16 23:39:48 → ⇥
  Size: 1262
  Editor: AnchalguptaATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 5:
+= Locking =
Lock Settings for IMC. This is required for autolocker to catch lock.
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+Line 8:
+[[attachment:IMC_Lock_Settings.png|IMC Lock settings]]
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+Line 10:
+= Mode Cleaner Model =
  . [[MC_model| MC model ]]
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+Line 24:
- . [[MC_WFS|MC Wave Front Sensors]]
+ . [[MC_WFS| MC Wave Front Sensors ]]
-Line 22:
+Line 28:
- . [attachment:MC-Schematic.pdf common mode servo circuit board]
+ . [[attachment:MC-Schematic.pdf|common mode servo circuit board]]
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+Line 31:
- * [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"
+ * [[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"