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| = Viewports on Vacuum Chambers (at Room Temperature) = | = Viewports (at Room Temperature) = '''''Related subsystems:''''' MIR, IOO, MIF, VAC, CRY, VIS... |
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| == Introduction == We can extract optical beams from the interferometer inside the vacuum chamber at the viewports. The optical beams are for length control scheme of the interferometer, alignment control scheme of the mirrors, optical levers for LCGT-SUS, and other monitoring devices (CCD or equivalents). Stray lights? === Applicable Documents === |
== Applicable Documents == * Spec. for vacuum chambers |
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| === Definitions === | == General Description == We can extract optical beams at the viewports from the interferometer inside the vacuum chamber. The optical beams are for length control scheme of the interferometer, alignment control scheme of the mirrors, optical levers for LCGT-SUS, and other monitoring devices (CCD or equivalent video cameras). Damping stray lights? * AR coating for 1064 nm and 532 nm * Wedge angle Details are described in ''Characteristics'' section. |
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| == General Description == | === Functions === * Photocal * Optical Lever * Video camera * Illumination * Diagnostic * Squeeze * Spare |
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| == Naming Conventions == | === Naming Conventions === |
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| == Viewport Locations == | === Locations === |
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| == Requirements == == Characteristics == == Inspection plans == |
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| * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=8509|LIGO-T1000022-v4, Viewports Subsystem Requirements Document]] |
Viewports (at Room Temperature)
Related subsystems: MIR, IOO, MIF, VAC, CRY, VIS...
Contents
Scope
This subsystem provides the optical viewports to pass through the optical beams from the vacuum chambers in which LCGT main interferometer is stored. The optical beams include...
The viewport subsystems that will be applied to the cryo-vacuum chambers for ITMs/ETMs of the future LCGT are NOT included in the scope of this subsystem so far.
Applicable Documents
- Spec. for vacuum chambers
- Optical Layout Drawing of the LCGT interferometer
- Length Sensing doc
- Alignment Sensing doc
- Optical lever doc
- CCD Monitor doc
- Any...
General Description
We can extract optical beams at the viewports from the interferometer inside the vacuum chamber. The optical beams are for length control scheme of the interferometer, alignment control scheme of the mirrors, optical levers for LCGT-SUS, and other monitoring devices (CCD or equivalent video cameras).
Damping stray lights?
- AR coating for 1064 nm and 532 nm
- Wedge angle
Details are described in Characteristics section.
Functions
- Photocal
- Optical Lever
- Video camera
- Illumination
- Diagnostic
- Squeeze
- Spare
Naming Conventions
Locations
- BS chamber
Requirements
Characteristics
Inspection plans