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Size: 1262
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← Revision 38 as of 2022-08-16 23:41:42 ⇥
Size: 1329
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| Lock Settings for IMC. This is required for autolocker to catch lock. | Lock Settings for IMC. Note C1:IOO-MC_FASTSW = 1 (Enable) and C1:IOO-MC_POL = 1 (Minus) is required state for autolocker to catch lock. |
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. Note C1:IOO-MC_FASTSW = 1 (Enable) and C1:IOO-MC_POL = 1 (Minus) is required state for autolocker to catch lock.
Mode Cleaner Model
Beam centering
Alignment Sensing and Control
Analog circuits
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"