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Testing the GRACE follow-on triple mirror assembly

MPS-Authors
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Sheard,  B.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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

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Danzmann,  K.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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CQG_31_19_195004.pdf
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Citation

Fleddermann, R., Ward, R. L., Elliot, M., Wuchenich, D. M., Gilles, F., Herding, M., et al. (2014). Testing the GRACE follow-on triple mirror assembly. Classical and Quantum Gravity, 31(19): 195004. doi:10.1088/0264-9381/31/19/195004.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-5544-8
Abstract
We report on the successful testing of the GRACE follow-on triple mirror assembly (TMA) prototype. This component serves to route the laser beam in a proposed follow-on mission to the Gravity Recovery and Climate Explorer (GRACE) mission, containing an optical instrument for space-based distance measurement between satellites. As part of this, the TMA has to meet a set of stringent requirements on both the optical and mechanical properties. The purpose of the TMA prototype testing is to establish the feasibility of the design, materials choice and fabrication techniques. Here we report on co-alignment testing of this device to the arc second (5 μrad) level and thermal alignment stability testing to 1 μ rad {{K}-1}.