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Compact multi-fringe interferometry with sub-picometer precision

MPS-Authors
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Isleif,  Katharina-Sophie
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Heinzel,  Gerhard
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Mehmet,  Moritz
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Gerberding,  Oliver
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1903.02945.pdf
(Preprint), 671KB

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There is no public supplementary material available
Citation

Isleif, K.-S., Heinzel, G., Mehmet, M., & Gerberding, O. (in preparation). Compact multi-fringe interferometry with sub-picometer precision.


Cite as: http://hdl.handle.net/21.11116/0000-0003-578C-E
Abstract
Deep frequency modulation interferometry combines optical minimalism with multi-fringe readout, precision however is key for applications such as optical gradiometers for satellite geodesy or as dimensional sensor for ground-based gravity experiments. We present a single-component interferometer smaller than a cubic inch. Two of these are compared to each other to demonstrate tilt and displacement measurements with a precision of less than $20\,\mathrm{nrad}/\sqrt{\mathrm{Hz}}$ and $1\,\mathrm{pm}/\sqrt{\mathrm{Hz}}$ at frequencies below $1\,\mathrm{Hz}$.