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Picometer-Stable Hexagonal Optical Bench to Verify LISA Phase Extraction Linearity and Precision

MPS-Authors
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Fernández Barranco,  Germán
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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

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

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Fulltext (public)

1810.00728.pdf
(Preprint), 248KB

PRL.122.081104.pdf
(Publisher version), 331KB

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Citation

Schwarze, T. S., Fernández Barranco, G., Penkert, D., Kaufer, M., Gerberding, O., & Heinzel, G. (2019). Picometer-Stable Hexagonal Optical Bench to Verify LISA Phase Extraction Linearity and Precision. Physical Review Letters, 122(8): 081104. doi:10.1103/PhysRevLett.122.081104.


Cite as: http://hdl.handle.net/21.11116/0000-0002-6937-B
Abstract
The Laser Interferometer Space Antenna (LISA) and its metrology chain have to fulfill stringent performance requirements to enable the space-based detection of gravitational waves. This implies the necessity of performance verification methods. In particular, the extraction of the interferometric phase, implemented by a phasemeter, needs to be probed for linearity and phase noise contributions. This Letter reports on a hexagonal quasimonolithic optical bench implementing a three-signal test for this purpose. Its characterization as sufficiently stable down to picometer levels is presented as well as its usage for a benchmark phasemeter performance measurement under LISA conditions. These results make it a candidate for the core of a LISA metrology verification facility.