Laser Frequency Noise Stabilisation and Interferometer Path Length Differences on LISA Pathfinder

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Paczkowski, S.; et al. (The LPF collaboration): Laser Frequency Noise Stabilisation and Interferometer Path Length Differences on LISA Pathfinder. In: Journal of Physics: Conference Series 840 (2017), Nr. 1, 12004. DOI: https://doi.org/10.1088/1742-6596/840/1/012004

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1722

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Sum total of downloads: 278




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Abstract: 
The LISA Pathfinder mission is a technology demonstrator for a LISA-like gravitational wave observatory in space. Its first results already exceed the expectations. This is also true for the optical metrology system which measures the distance in between the two free-floating test masses with unpreceded precision. One noise source that can possibly affect the measurement is the laser frequency noise. It is measured with a dedicated interferometer and suppressed with a control loop. We measured the laser frequency noise and characterised the control loop in flight. The coupling of laser frequency noise into the measured phase is directly proportional to the path length difference in the respective interferometer. Dedicated experiments have been performed to estimate the path length difference in flight. In addition, this frequency stabilisation scheme is also a possible solution for the LISA mission.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Mathematik und Physik

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downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 209 75.18%
2 image of flag of China China 30 10.79%
3 image of flag of United States United States 9 3.24%
4 image of flag of Netherlands Netherlands 5 1.80%
5 image of flag of Switzerland Switzerland 3 1.08%
6 image of flag of Austria Austria 3 1.08%
7 image of flag of Russian Federation Russian Federation 2 0.72%
8 image of flag of Japan Japan 2 0.72%
9 image of flag of Italy Italy 2 0.72%
10 image of flag of France France 2 0.72%
    other countries 11 3.96%

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