Details
| Original language | English |
|---|---|
| Pages (from-to) | 395-400 |
| Number of pages | 6 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 90 |
| Issue number | 3-4 |
| Publication status | Published - Mar 2008 |
Abstract
When the position of a test mass in one dimension is measured with picometer accuracy, angular alignment jitter inevitably couples noise into the measurement. We present recent sensitivity measurements of the LISA technology package interferometer with articulated mirrors as test masses, actuated by piezo-electric transducers. The required longitudinal displacement resolution of 9 pm/√Hz above 3 mHz has been demonstrated with an angular noise that corresponds to the expected for on-orbit operation. The excess noise contribution of this test mass jitter onto the sensitive displacement readout was completely subtracted by fitting the angular interferometric data streams to the longitudinal displacement measurement. Thus, this cross-coupling constitutes no limitation to the required performance of the LISA technology package interferometry.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 90, No. 3-4, 03.2008, p. 395-400.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Subtraction of test mass angular noise in the LISA technology package interferometer
AU - Guzmán Cervantes, F.
AU - Steier, F.
AU - Wanner, G.
AU - Heinzel, G.
AU - Danzmann, K.
PY - 2008/3
Y1 - 2008/3
N2 - When the position of a test mass in one dimension is measured with picometer accuracy, angular alignment jitter inevitably couples noise into the measurement. We present recent sensitivity measurements of the LISA technology package interferometer with articulated mirrors as test masses, actuated by piezo-electric transducers. The required longitudinal displacement resolution of 9 pm/√Hz above 3 mHz has been demonstrated with an angular noise that corresponds to the expected for on-orbit operation. The excess noise contribution of this test mass jitter onto the sensitive displacement readout was completely subtracted by fitting the angular interferometric data streams to the longitudinal displacement measurement. Thus, this cross-coupling constitutes no limitation to the required performance of the LISA technology package interferometry.
AB - When the position of a test mass in one dimension is measured with picometer accuracy, angular alignment jitter inevitably couples noise into the measurement. We present recent sensitivity measurements of the LISA technology package interferometer with articulated mirrors as test masses, actuated by piezo-electric transducers. The required longitudinal displacement resolution of 9 pm/√Hz above 3 mHz has been demonstrated with an angular noise that corresponds to the expected for on-orbit operation. The excess noise contribution of this test mass jitter onto the sensitive displacement readout was completely subtracted by fitting the angular interferometric data streams to the longitudinal displacement measurement. Thus, this cross-coupling constitutes no limitation to the required performance of the LISA technology package interferometry.
UR - http://www.scopus.com/inward/record.url?scp=40149083389&partnerID=8YFLogxK
U2 - 10.1007/s00340-007-2923-0
DO - 10.1007/s00340-007-2923-0
M3 - Article
AN - SCOPUS:40149083389
VL - 90
SP - 395
EP - 400
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 3-4
ER -