Details
| Original language | English |
|---|---|
| Article number | 074501 |
| Journal | Review of scientific instruments |
| Volume | 86 |
| Issue number | 7 |
| Early online date | 23 Jul 2015 |
| Publication status | Published - Jul 2015 |
Abstract
Precision phase readout of optical beat note signals is one of the core techniques required for intersatellite laser interferometry. Future space based gravitational wave detectors like eLISA require such a readout over a wide range of MHz frequencies, due to orbit induced Doppler shifts, with a precision in the order of μ rad / Hz at frequencies between 0.1 mHz and 1 Hz. In this paper, we present phase readout systems, so-called phasemeters, that are able to achieve such precisions and we discuss various means that have been employed to reduce noise in the analogue circuit domain and during digitisation. We also discuss the influence of some non-linear noise sources in the analogue domain of such phasemeters. And finally, we present the performance that was achieved during testing of the elegant breadboard model of the LISA phasemeter, which was developed in the scope of a European Space Agency technology development activity.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
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In: Review of scientific instruments, Vol. 86, No. 7, 074501, 07.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Readout for intersatellite laser interferometry
T2 - Measuring low frequency phase fluctuations of high-frequency signals with microradian precision
AU - Gerberding, Oliver
AU - Diekmann, Christian
AU - Kullmann, Joachim
AU - Tröbs, Michael
AU - Bykov, Ioury
AU - Barke, Simon
AU - Brause, Nils Christopher
AU - Esteban Delgado, Juan José
AU - Schwarze, Thomas S.
AU - Reiche, Jens
AU - Danzmann, Karsten
AU - Rasmussen, Torben
AU - Hansen, Torben Vendt
AU - Enggaard, Anders
AU - Pedersen, Søren Møller
AU - Jennrich, Oliver
AU - Suess, Martin
AU - Sodnik, Zoran
AU - Heinzel, Gerhard
PY - 2015/7
Y1 - 2015/7
N2 - Precision phase readout of optical beat note signals is one of the core techniques required for intersatellite laser interferometry. Future space based gravitational wave detectors like eLISA require such a readout over a wide range of MHz frequencies, due to orbit induced Doppler shifts, with a precision in the order of μ rad / Hz at frequencies between 0.1 mHz and 1 Hz. In this paper, we present phase readout systems, so-called phasemeters, that are able to achieve such precisions and we discuss various means that have been employed to reduce noise in the analogue circuit domain and during digitisation. We also discuss the influence of some non-linear noise sources in the analogue domain of such phasemeters. And finally, we present the performance that was achieved during testing of the elegant breadboard model of the LISA phasemeter, which was developed in the scope of a European Space Agency technology development activity.
AB - Precision phase readout of optical beat note signals is one of the core techniques required for intersatellite laser interferometry. Future space based gravitational wave detectors like eLISA require such a readout over a wide range of MHz frequencies, due to orbit induced Doppler shifts, with a precision in the order of μ rad / Hz at frequencies between 0.1 mHz and 1 Hz. In this paper, we present phase readout systems, so-called phasemeters, that are able to achieve such precisions and we discuss various means that have been employed to reduce noise in the analogue circuit domain and during digitisation. We also discuss the influence of some non-linear noise sources in the analogue domain of such phasemeters. And finally, we present the performance that was achieved during testing of the elegant breadboard model of the LISA phasemeter, which was developed in the scope of a European Space Agency technology development activity.
UR - http://www.scopus.com/inward/record.url?scp=84937787192&partnerID=8YFLogxK
U2 - 10.1063/1.4927071
DO - 10.1063/1.4927071
M3 - Article
AN - SCOPUS:84937787192
VL - 86
JO - Review of scientific instruments
JF - Review of scientific instruments
SN - 0034-6748
IS - 7
M1 - 074501
ER -