Differences between revisions 49 and 50
Revision 49 as of 2011-07-07 02:34:45
Size: 1945
Comment:
Revision 50 as of 2011-07-07 02:36:32
Size: 1991
Comment:
Deletions are marked like this. Additions are marked like this.
Line 59: Line 59:
== Procurement process and plans ==
TBD

Viewports (at Room Temperature)

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


Scope

This subsystem provides the optical viewports mounted on the vacuum chambers 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

Beams for

  • Transmission of IR/Green lasers
  • Optical Lever transmitter/receiver
  • Video camera
  • Illumination
  • Diagnostic
  • (Squeeze)
  • (Spare)

Naming Conventions

TBD

Locations

  • BS chamber

Requirements

TBD

Characteristics

TBD

Inspection plans

TBD

Procurement process and plans

TBD

LCGT/subgroup/AOS/Viewport1 (last edited 2012-09-16 20:40:35 by KiwamuIzumi)