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| The Mode Cleaner is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick. The mode cleaner length is ~12 m (24 m round trip), the Finesse is ~1300. [[Installing the Mode Cleener board]] attachment:MC-Schematic.pdf === WFS === To adjust the WFS offsets, watch the C1IOO_WFS_HEADS screen and run the script /cvs/cds/caltech/scripts/MC/WFS/McWFS_dc_offsets to ezcaservo the readbacks to zero. = 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" |
The Mode Cleaner is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick.
The mode cleaner length is ~12 m (24 m round trip), the Finesse is ~1300.
Installing the Mode Cleener board
attachment:MC-Schematic.pdf
WFS
To adjust the WFS offsets, watch the C1IOO_WFS_HEADS screen and run the script /cvs/cds/caltech/scripts/MC/WFS/McWFS_dc_offsets to ezcaservo the readbacks to zero.
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"