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Size: 441
Comment:
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Size: 1038
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| The 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 is a suspended triangular cavity. Each mirror of the triangle is 0.25 kg, 3" in diameter and 1" thick. |
| Line 3: | Line 3: |
| The mode cleaner length is ~12 m (24 m round trip), the Finesse is ~1300. | The input mode cleaner length is ~13.5 m (27 m round trip), the Finesse is ~1460. Cavity pole is 3.79kHz. |
| Line 5: | Line 5: |
| [[Installing the Mode Cleener board]] | [[Installing the Input Mode Cleaner board]] |
| Line 11: | Line 11: |
| 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. | /McWFS = 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" = OUTPUT MODE CLEANER = The Output Mode Cleaner is mounted into a monolithic copper block cavity, with three fixed mirrors and one PZT length-controlled mirror. The SW drawings are attached below. == SW Output Mode Cleaner Dwgs == attachment:LIGO-D050379-C attachment:LIGO-D050366-B attachment:LIGO-D050369-C attachment:LIGO-D050370-B attachment:LIGO-E050336-00 |
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.
Installing the Input Mode Cleaner board
attachment:MC-Schematic.pdf
WFS
/McWFS
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"
OUTPUT MODE CLEANER
The Output Mode Cleaner is mounted into a monolithic copper block cavity, with three fixed mirrors and one PZT length-controlled mirror. The SW drawings are attached below.
SW Output Mode Cleaner Dwgs
attachment:LIGO-D050379-C attachment:LIGO-D050366-B attachment:LIGO-D050369-C attachment:LIGO-D050370-B attachment:LIGO-E050336-00