Auxiliary Optics Lists

This is a preliminary list of auxiliary optics, sensors and other stuff.

ITM

• Optical lever
• Local sensors to monitor the position of the test mass
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended baffles (suggested by Riccardo)
• Suspended beam dumps for AR reflected beams.
• CCD camera to look at the mirror surface.

ETM

• Suspended beam reducing telescope for transmitted beam.
  • Vibration isolation requirement TBD
• Detection optics for transmitted beam, especially QPD (suspended ? in vacuum ?)
• Optical lever
• Local sensors to monitor the position of the test mass
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended baffles to kill scattered light (suggested by Riccardo)
• Suspended beam dumps for killing AR reflected beams.
• CCD camera to look at the mirror surface.

BS

• Suspended steering mirrors to lead the POX/POY beams out of the vacuum chamber.
• Detection optics for POX/POY.
• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

PRM

• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

Faraday

• Detection optics for REFL

PR2

• Suspended steering mirror(s) to lead the transmitted beam out of the vacuum chamber.
• Detection optics for POP.
• Injection/Detection optics for green laser.
• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

PR3

• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

SRM

• Suspended steering mirror(s) to lead the transmitted beam out of the vacuum chamber.
• Detection optics for AS
  • AS Pick-off
  • AS RF PD/QPD (in vacuum ?)
  • Suspended mode matching telescope for OMC
  • Suspended OMC
  • In vacuum DC PD
• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

SR2

• Suspended steering mirror(s) to lead the green beam into the interferometer.
• Injection/Detection optics for green laser.
• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

SR3

• Optical Lever
• Local sensors to monitor the position of the mirror
  • At least horizontal degrees of freedom (X,Y)
  • Preferably a vertical sensor (Z)
  • The sensors have to be rigidly mounted on the ground so that these are useful for remembering the position of the mirror and recording the drifts.
• Suspended beam dumps for killing auxiliary beams (in vacuum).
• CCD to look at the mirror surface.

Total amount

For IFO optics

For input optics:

For output optics:

For output ports: