Picometer-stable hexagonal optical bench to verify LISA phase extraction linearity and precision
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6 pages
Published in:
- Phys.Rev.Lett. 122 (2019) 8, 081104
- Published: Mar 1, 2019
e-Print:
- 1810.00728 [astro-ph.IM]
View in:
Citations per year
Abstract: (arXiv)
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.Note:
- 5 pages, 4 figures
- Gravitation and Astrophysics
- LISA
- performance
- benchmark
- stability
- noise
- electromagnetic field
- measurement methods
- optics
References(23)
Figures(4)
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