Details
| Original language | English |
|---|---|
| Article number | 042009 |
| Journal | Phys. Rev. D |
| Volume | 105 |
| Issue number | 4 |
| Publication status | Published - 25 Feb 2022 |
| Externally published | Yes |
Abstract
Keywords
- astro-ph.IM, physics.ins-det, physics.optics
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Phys. Rev. D, Vol. 105, No. 4, 042009, 25.02.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental verification of intersatellite clock synchronization at LISA performance levels
AU - Yamamoto, Kohei
AU - Vorndamme, Christoph
AU - Hartwig, Olaf
AU - Staab, Martin
AU - Schwarze, Thomas S.
AU - Heinzel, Gerhard
N1 - Funding information: The authors acknowledge financial support by the German Aerospace Center (DLR) with funds from the Federal Ministry of Economics and Technology (BMWi) according to a decision of the German Federal Parliament (Grants No. 50OQ0601, No. 50OQ1301, No. 50OQ1801), the European Space Agency (ESA) (Grants No. 22331/09/NL/HB, No. 16238/10/NL/HB), the Deutsche Forschungsgemeinschaft (DFG) Sonderforschungsbereich 1128 Relativistic Geodesy and Cluster of Excellence “QuantumFrontiers: Light and Matter at the Quantum Frontier: Foundations and Applications in Metrology” (EXC-2123, Project No. 390837967). O. H. acknowledges funding from Centre National d’Etudes Spatiales.
PY - 2022/2/25
Y1 - 2022/2/25
N2 - The Laser Interferometer Space Antenna (LISA) aims to observe gravitational waves in the mHz regime over its 10-year mission time. LISA will operate laser interferometers between three spacecrafts. Each spacecraft will utilize independent clocks which determine the sampling times of onboard phasemeters to extract the interferometric phases and, ultimately, gravitational wave signals. To suppress limiting laser frequency noise, signals sampled by each phasemeter need to be combined in postprocessing to synthesize virtual equal-arm interferometers. The synthesis in turn requires a synchronization of the independent clocks. This article reports on the experimental verification of a clock synchronization scheme down to LISA performance levels using a hexagonal optical bench. The development of the scheme includes data processing that is expected to be applicable to the real LISA data with minor modifications. Additionally, some noise coupling mechanisms are discussed.
AB - The Laser Interferometer Space Antenna (LISA) aims to observe gravitational waves in the mHz regime over its 10-year mission time. LISA will operate laser interferometers between three spacecrafts. Each spacecraft will utilize independent clocks which determine the sampling times of onboard phasemeters to extract the interferometric phases and, ultimately, gravitational wave signals. To suppress limiting laser frequency noise, signals sampled by each phasemeter need to be combined in postprocessing to synthesize virtual equal-arm interferometers. The synthesis in turn requires a synchronization of the independent clocks. This article reports on the experimental verification of a clock synchronization scheme down to LISA performance levels using a hexagonal optical bench. The development of the scheme includes data processing that is expected to be applicable to the real LISA data with minor modifications. Additionally, some noise coupling mechanisms are discussed.
KW - astro-ph.IM
KW - physics.ins-det
KW - physics.optics
UR - http://www.scopus.com/inward/record.url?scp=85126030510&partnerID=8YFLogxK
U2 - 10.1103/physrevd.105.042009
DO - 10.1103/physrevd.105.042009
M3 - Article
VL - 105
JO - Phys. Rev. D
JF - Phys. Rev. D
SN - 1550-2368
IS - 4
M1 - 042009
ER -