Differences between revisions 44 and 45

Viewports (at Room Temperature)

Related subgroups: MIR, IOO, MIF, VAC, CRY, VIS...

Contents

Viewports (at Room Temperature)

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

-  ⇤ ← Revision 44 as of 2011-07-03 02:08:50 → 
  Size: 1843
  Editor: TomotadaAkutsu
  Comment:
+   ← Revision 45 as of 2011-07-03 02:09:38 → ⇥
  Size: 1846
  Editor: TomotadaAkutsu
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-The optical beams are for length and alignment sensing and control scheme, optical levers for LCGT-SUS, and other monitoring devices (CCD or equivalent video cameras).
+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).