Tip-Tilt Mirror Suspension: Beam Steering for the Advanced LIGO Sensing and Control Signals

Document #:

LIGO-P1100090-v5

Document type:

P - Publications

Abstract:

We describe the design of a small optic suspension, referred to as the Tip-Tilt mirror suspension, used to isolate selected small optics for the interferometer sensing and control beams in the Advanced LIGO gravitational wave detectors. The suspended optics are isolated in all 6 degrees of freedom, with eigenmode frequencies between 1.3 Hz and 10 Hz. The suspended optic has voice coil actuators which provide an angular range of ±4 mrad in the pitch and yaw degrees of freedom.

Files in Document:

• slagmolen.pdf (1.5 MB)

Other Files:

• submitted manuscript 25 Sept 2011.zip (12.6 MB)

Topics:

• Sensing and Control
• Basic R&D

Authors:

• Bram Slagmolen
• Adam Mullavey
• John Miller
• David McClelland
• Peter Fritschel

Notes and Changes:

submitted for review to Rev. Sci. Instr. on 25 September 2011

Related Documents:

• LIGO-D1001396: aLIGO Tip-Tilt (HTTS) Mirror Assembly

Referenced by:

Journal References:

Published in Rev Sci Instrum vol. 82 pg. 125108.