|
Size: 1180
Comment:
|
Size: 1846
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = Viewports on Vacuum Chambers (at Room Temperature) = | = Viewports (at Room Temperature) = '''''Related subgroups:''''' MIR, IOO, MIF, VAC, CRY, VIS... |
| Line 6: | Line 7: |
| This subsystem provides the optical viewports to pass through the optical beams from the vacuum chambers in which LCGT main interferometer is stored. | This subsystem provides the optical viewports to pass the optical beams into or from the LCGT in-vacuum interferometer. |
| Line 9: | Line 10: |
| 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. | The viewport subsystems that will be dedicated to the cryo-vacuum chambers for the future LCGT are '''NOT''' included in the scope of this subsystem so far. |
| Line 11: | Line 12: |
| == 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 === * Length Sensing doc * Alignment Sensing doc |
== Applicable Documents == * Spec. for vacuum chambers * Optical Layout Drawing of the LCGT interferometer * Length Sensing and Control doc * Alignment Sensing and Control doc |
| Line 24: | Line 21: |
| === Definitions === | == General Description == We can extract optical beams at the viewports from the interferometer inside the vacuum chamber. The optical beams are for length and alignment sensing and control scheme, optical levers for suspensions, and other monitoring devices (CCD or equivalent video cameras). Dumping stray light beams? * AR coating for 1064 nm and 532 nm * Wedge angle Details are described in ''Characteristics'' section. |
| Line 27: | Line 32: |
| == General Description == | === Functions === |
| Line 29: | Line 34: |
| == Naming Conventions == | * Optical Lever * Video camera * Illumination * Diagnostic * Squeeze * (Spare) |
| Line 31: | Line 41: |
| == Viewport Locations == | === Naming Conventions === TBD === Locations === * BS chamber * == Requirements == TBD == Characteristics == TBD == Inspection plans == TBD |
| Line 35: | Line 60: |
| * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=8509|LIGO-T1000022-v4, Viewports Subsystem Requirements Document]] * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=12798|LIGO-T1000334-v1, Review Report Interferometer Sensing and Control Final Design]] |
Viewports (at Room Temperature)
Related subgroups: MIR, IOO, MIF, VAC, CRY, VIS...
Contents
Scope
This subsystem provides the optical viewports to pass the optical beams into or from the LCGT in-vacuum interferometer. The optical beams include...
The viewport subsystems that will be dedicated to the cryo-vacuum chambers for 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 and Control doc
- Alignment Sensing and Control 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 and alignment sensing and control scheme, optical levers for suspensions, and other monitoring devices (CCD or equivalent video cameras).
Dumping stray light beams?
- AR coating for 1064 nm and 532 nm
- Wedge angle
Details are described in Characteristics section.
Functions
- Optical Lever
- Video camera
- Illumination
- Diagnostic
- Squeeze
- (Spare)
Naming Conventions
TBD
Locations
- BS chamber
Requirements
TBD
Characteristics
TBD
Inspection plans
TBD