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An absolute optical frequency reference for space

Schuldt, Thilo and Oswald, Markus and Gohlke, Martin and Döringshoff, Klaus and Kovalchuk, Evgeny and Peters, Achim and Braxmaier, Claus (2018) An absolute optical frequency reference for space. In: proceedings of the international conference on space optics. International Conference on Space Optics, Chania, Griechenland.

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A variety of future space missions rely on the availability of high-performance optical frequency references with applications in fundamental physics, geoscience, Earth observation and global satellite navigation systems (GNSS). Examples are the gravitational wave detector LISA (Laser Interferometer Space Antenna), the Earth gravity mission NGGM (Next Generation Gravity Mission) and missions, dedicated to tests of Special Relativity, e.g. by performing a Kennedy-Thorndike experiment testing the boost dependence of the speed of light. In this context, we developed optical frequency references based on Doppler-free spectroscopy of molecular iodine where compactness and mechanical and thermal stability are main design criteria. We demonstrated a frequency instability of 610-15 at 1 s integration time and 310-15 for integration times between 100 s and 1.000 s. Furthermore, a very compact spectroscopy setup was realized for the sounding rocket mission JOKARUS which was successfully flown in May 2018. In a current activity, an integrated high-performance iodine-based frequency reference is developed which serves as a demonstrator for future GNSS using optical technologies.

Item URL in elib:https://elib.dlr.de/122211/
Document Type:Conference or Workshop Item (Speech)
Title:An absolute optical frequency reference for space
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schuldt, ThiloDLR-RY, BremenUNSPECIFIED
Oswald, MarkusZARM, Uni BremenUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Döringshoff, KlausHumboldt University Berlin, GermanyUNSPECIFIED
Kovalchuk, EvgenyHumboldt University Berlin, GermanyUNSPECIFIED
Peters, AchimHumboldt University Berlin, GermanyUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Journal or Publication Title:proceedings of the international conference on space optics
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:optical clock, space instrumentation, satellite navigation, tests of fundamental physics, modulation transfer spectroscopy, laser frequency stabilization
Event Title:International Conference on Space Optics
Event Location:Chania, Griechenland
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Systems Engineering Optische Systeme
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:24 Oct 2018 11:18
Last Modified:24 Oct 2018 11:18

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