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Size: 837
Comment:
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Size: 970
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| 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 = |
| Line 3: | Line 3: |
| The input mode cleaner length is ~13.5 m (27 m round trip), the Finesse is ~1460. Cavity pole is 3.79kHz. [[Installing the Input Mode Cleaner board]] attachment:MC-Schematic.pdf === Beam centering === http://nodus.ligo.caltech.edu:8080/40m/2863 |
. 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. |
| Line 13: | Line 6: |
| http://nodus.ligo.caltech.edu:8080/40m/2864 | |
| Line 16: | Line 8: |
| http://nodus.ligo.caltech.edu:8080/40m/2865 | = Beam centering = . http://nodus.ligo.caltech.edu:8080/40m/2863 |
| Line 18: | Line 11: |
| === WFS === [[MC WFS]] |
. 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_WFS|MC Wave Front Sensors]] = Analog circuits = . [attachment:MC-Schematic.pdf common mode servo circuit board] |
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
Alignment Sensing and Control
Analog circuits
- [attachment:MC-Schematic.pdf common mode servo circuit board]
Documents
[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"