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Proceedings Paper

LISA pathfinder optical interferometry
Author(s): Claus Braxmaier; Gerhard Heinzel; Kevin F. Middleton; Martin E. Caldwell; W. Konrad; H. Stockburger; S. Lucarelli; Maurice B. te Plate; V. Wand; A. C. Garcia; F. Draaisma; J. Pijnenburg; D. I. Robertson; Christian Killow; Harry Ward; Karsten Danzmann; Ulrich A. Johann
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Paper Abstract

The LISA Technology Package (LTP) aboard of LISA pathfinder mission is dedicated to demonstrate and verify key technologies for LISA, in particular drag free control, ultra-precise laser interferometry and gravitational sensor. Two inertial sensor, the optical interferometry in between combined with the dimensional stable Glass ceramic Zerodur structure are setting up the LTP. The validation of drag free operation of the spacecraft is planned by measuring laser interferometrically the relative displacement and tilt between two test masses (and the optical bench) with a noise levels of 10pm/√Hz and 10 nrad/√Hz between 3mHz and 30mHz. This performance and additionally overall environmental tests was currently verified on EM level. The OB structure is able to support two inertial sensors (≈17kg each) and to withstand 25 g design loads as well as 0...40°C temperature range. Optical functionality was verified successfully after environmental tests. The engineering model development and manufacturing of the optical bench and interferometry hardware and their verification tests will be presented.

Paper Details

Date Published: 29 September 2004
PDF: 10 pages
Proc. SPIE 5500, Gravitational Wave and Particle Astrophysics Detectors, (29 September 2004); doi: 10.1117/12.555266
Show Author Affiliations
Claus Braxmaier, EADS Astrium GmbH (Germany)
Gerhard Heinzel, Max-Planck-Institut fur Gravitationsphysik (Germany)
Kevin F. Middleton, Rutherford Appleton Lab. (United Kingdom)
Martin E. Caldwell, Rutherford Appleton Lab. (United Kingdom)
W. Konrad, EADS Astrium GmbH (Germany)
H. Stockburger, EADS Astrium GmbH (Germany)
S. Lucarelli, EADS Astrium GmbH (Germany)
Maurice B. te Plate, European Space Agency/ESTEC (Netherlands)
V. Wand, Max-Planck-Institut fur Gravitationsphysik (Germany)
A. C. Garcia, Max-Planck-Institut fur Gravitationsphysik (Germany)
F. Draaisma, TNO TPD (Netherlands)
J. Pijnenburg, TNO TPD (Netherlands)
D. I. Robertson, Univ. of Glasgow (United Kingdom)
Christian Killow, Univ. of Glasgow (United Kingdom)
Harry Ward, Univ. of Glasgow (United Kingdom)
Karsten Danzmann, Max-Planck-Institut fur Gravitationsphysik (Germany)
Ulrich A. Johann, EADS Astrium GmbH (Germany)

Published in SPIE Proceedings Vol. 5500:
Gravitational Wave and Particle Astrophysics Detectors
James Hough; Gary H. Sanders, Editor(s)

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