An interferometric sensor for satellite drag-free control

Details An interferometric sensor for satellite drag-free control An interferometric sensor for satellite drag-free control

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cqgra..22s.269s&link_type=abstract

Classical and Quantum Gravity, Volume 22, Issue 10, pp. S269-S277 (2005).

Computer Science

9

Scientific paper

We describe a compact interferometer, under development at the University of Birmingham, that could be employed as a zero-stiffness sensor for drag-free satellites. A prototype bench-top polarization-based homodyne interferometer is discussed that achieves a shot-noise limited displacement sensitivity of 3 × 10-12 m Hz1/2 above 60 Hz. We discuss a wavelength modulation technique that will render the interferometer more robust as it enables the absolute difference in interferometric armlengths to be determined.

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