LIGO Document P1100090-v5

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

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LIGO-P1100090-v5
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P - Publications
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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.
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submitted for review to Rev. Sci. Instr. on 25 September 2011
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Published in Rev Sci Instrum vol. 82 pg. 125108.

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