Small optic suspensions for Advanced LIGO input optics and other precision optical experiments
G. Ciani, M. A. Arain, S. M. Aston, D. Feldbaum, P. Fulda, J. Gleason,, M. Heintze, R. M. Martin, C. L. Mueller, D. M. Nanda Kumar, A. Pele, D. H., Reitze, P. Sainathan, D. B. Tanner, L. F. Williams, G. Mueller
TL;DR
This paper presents the design and performance of compact optic suspensions that effectively isolate optics from seismic motion in the Advanced LIGO detector, enhancing precision in gravitational wave detection.
Contribution
It introduces a novel small suspension design that provides six-degree-of-freedom isolation, local sensing, actuation, and passive damping for LIGO's input optics.
Findings
Effective seismic isolation achieved in all six degrees of freedom.
Compact design suitable for space-constrained environments.
Enhanced stability and performance of the input optics.
Abstract
We report on the design and performance of small optic suspensions developed to suppress seismic motion of out-of-cavity optics in the Input Optics subsystem of the Advanced LIGO interferometric gravitational wave detector. These compact single stage suspensions provide isolation in all six degrees of freedom of the optic, local sensing and actuation in three of them, and passive damping for the other three.
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