Physics – Optics
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..ses.dd008r&link_type=abstract
American Physical Society, 71st Annual Meeting of the Southeastern Section, 11-13 November, 2004, Oak Ridge, TN. MEETING ID: S
Physics
Optics
Scientific paper
Numerical simulation was performed to understand the dynamics of the Laser Interferometer Gravitational-wave Observatory's (LIGO) suspended optics as used in the Input Optics (IO), a subsystem consisting of a mode cleaner and mode matching telescope. The end-to-end package (LIGO programming language) was used to build simulation programs (boxes) for the IO suspended optics (suspension box) and the vibration isolation stacks of the optical tables (table box) on which these suspended optics are placed. To make the simulation realistic, actual floor motion recorded at the LIGO Livingston Observatory was given as the mechanical input to the table box, and the resultant table top motion was given to the suspension box. The simulations were validated via comparison with the optics motion recorded concurrently with the floor motion used as the input to the table box. These boxes were used for various studies such as characterization of the table motion under various levels of floor motions, the pointing fluctuation of the IO output beam and the associated power coupling to the arm cavity, and understanding of the mode cleaner's performance.
Findley Tiffany
Rogillio Kristen
Yoshida Sanichiro
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