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Optical Clock Technologies for Global Navigation Satellite Systems

Schuldt, Thilo and Gohlke, Martin and Oswald, Markus and Wüst, Jan and Blomberg, Tim and Döringshoff, Klaus and Bawamia, Ahmad and Wicht, Andreas and Lezius, Matthias and Voss, Kai and Krutzik, Markus and Herrmann, Sven and Kovalchuk, Evgeny and Peters, Achim and Braxmaier, Claus (2021) Optical Clock Technologies for Global Navigation Satellite Systems. GPS Solutions, 25, p. 83. Springer. doi: 10.1007/s10291-021-01113-2. ISSN 1080-5370.

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Official URL: https://link.springer.com/article/10.1007/s10291-021-01113-2


Future generations of global navigation satellite systems (GNSS) can benefit from optical technologies. Especially optical clocks could back-up or replace the currently used microwave clocks, having the potential to improve GNSS position determination enabled by their lower frequency instabilities. Furthermore, optical clock technologies - in combination with optical inter-satellite links - enable new GNSS architectures, e.g. by synchronization of distant optical frequency references within the constellation using time and frequency transfer techniques. Optical frequency references based on Doppler-free spectroscopy of molecular iodine are seen as a promising candidate for a future GNSS optical clock. Compact and ruggedized setups have been developed, showing frequency instabilities at the 10^(-15) level for averaging times between 1s and 10.000s. In this paper, we introduce optical clock technologies for applications in future GNSS and present the current status of our developments of iodine-based optical frequency references.

Item URL in elib:https://elib.dlr.de/141236/
Document Type:Article
Title:Optical Clock Technologies for Global Navigation Satellite Systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schuldt, Thilothilo.schuldt (at) dlr.deUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Oswald, Markusmarkus.oswald (at) dlr.deUNSPECIFIED
Wüst, Janjan.wuest (at) dlr.deUNSPECIFIED
Blomberg, TimTim.Blomberg (at) dlr.deUNSPECIFIED
Döringshoff, KlausHumboldt University Berlin, GermanyUNSPECIFIED
Bawamia, AhmadFerdinand-Braun-InstitutUNSPECIFIED
Wicht, AndreasFerdinand-Braun-InstitutUNSPECIFIED
Lezius, MatthiasMenlo Systems GmbHUNSPECIFIED
Voss, KaiSpaceTech GmbH, ImmenstaadUNSPECIFIED
Krutzik, MarkusHumboldt-Universität zu BerlinUNSPECIFIED
Herrmann, SvenZARM, University of Bremen, GermanyUNSPECIFIED
Kovalchuk, EvgenyHumboldt University Berlin, GermanyUNSPECIFIED
Peters, AchimHumboldt University Berlin, GermanyUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Date:5 April 2021
Journal or Publication Title:GPS Solutions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10291-021-01113-2
Page Range:p. 83
Keywords:optical clock, iodine reference, space instrumentation, future GNSS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Systems Engineering Optische Systeme (old), R - Advantage (old)
Location: Bremen , Ulm
Institutes and Institutions:Institute of Quantum Technologies > Quantum Metrology
Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hamann, Ines
Deposited On:06 Mar 2021 17:20
Last Modified:25 Jun 2021 16:59

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