Optical testbed for the LISA phasemeter

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Schwarze, Thomas S.; Fernández Barranco, G.; Penkert, D.; Gerberding, O.; Heinzel, Gerhard et al.: Optical testbed for the LISA phasemeter. In: Journal of Physics: Conference Series 716 (2016), Nr. 1, 12004. DOI: http://dx.doi.org/10.1088/1742-6596/716/1/012004

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The planned spaceborne gravitational wave detector LISA will allow the detection of gravitational waves at frequencies between 0.1 mHz and 1 Hz. A breadboard model for the metrology system aka the phasemeter was developed in the scope of an ESA technology development project by a collaboration between the Albert Einstein Institute, the Technical University of Denmark and the Danish industry partner Axcon Aps. It in particular provides the electronic readout of the main interferometer phases besides auxiliary functions. These include clock noise transfer, ADC pilot tone correction, inter-satellite ranging and data transfer. Besides in LISA, the phasemeter can also be applied in future satellite geodesy missions. Here we show the planning and advances in the implementation of an optical testbed for the full metrology chain. It is based on an ultra-stable hexagonal optical bench. This bench allows the generation of three unequal heterodyne beatnotes with a zero phase combination, thus providing the possibility to probe the phase readout for non-linearities in an optical three signal test. Additionally, the utilization of three independent phasemeters will allow the testing of the auxiliary functions. Once working, components can individually be replaced with flight-qualified hardware in this setup.
License of this version: CC BY 3.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 219 64.04%
2 image of flag of China China 73 21.35%
3 image of flag of United States United States 22 6.43%
4 image of flag of France France 9 2.63%
5 image of flag of Netherlands Netherlands 4 1.17%
6 image of flag of India India 2 0.58%
7 image of flag of Hong Kong Hong Kong 2 0.58%
8 image of flag of Korea, Republic of Korea, Republic of 1 0.29%
9 image of flag of Italy Italy 1 0.29%
10 image of flag of Israel Israel 1 0.29%
    other countries 8 2.34%

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