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OPTICAL TECHNOLOGIES AS A PERSPECTIVE FOR FUTURE GNSS

Schuldt, Thilo and Oswald, Markus and Döringshoff, Klaus and Gohlke, Martin and Sanjuan Munoz, Jose and Resch, Andreas and Abich, Klaus and Kovalchuk, Evgeny and Peters, Achim and Braxmaier, Claus (2017) OPTICAL TECHNOLOGIES AS A PERSPECTIVE FOR FUTURE GNSS. In: Scientific and Fundamental Aspects of GNSS / Galileo. 6th International Colloquium on Scientific and Fundamental Aspects of GNSS/Galileo, 25 - 27 October 2017, Valencia, Italien.

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Abstract

Optical frequency references are a key element for the realization of future space missions. They are needed for missions related to tests of fundamental physics, gravitational wave detection, Earth observation and navigation and ranging. In missions such as GRACE follow-on or LISA the optical frequency reference is used as light source for high-sensitivity inter-satellite distance metrology. While cavity-based systems are current baseline e.g. for LISA, frequency stabilization on a hyper�ne transition in molecular iodine near 532nm is a promising alternative. Due to its absolute frequency, iodine standards crucially simplify the initial spacecraft acquisition procedures. Current setups ful�ll the GRACE-FO and LISA frequency stability requirements and are realized near Engineering Model level. We present the current status of our developments on Elegant Breadboard (EBB) and Engineering Model (EM) level taking into account speci�c design criteria for space compatibility such as compactness (size iodine spectroscopy EM: 38 � 18 � 10 cm3) and robustness. Both setups achieved similar frequency stabilities of � 1�10

Item URL in elib:https://elib.dlr.de/120155/
Document Type:Conference or Workshop Item (Speech)
Title:OPTICAL TECHNOLOGIES AS A PERSPECTIVE FOR FUTURE GNSS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schuldt, ThiloDLR-RY, BremenUNSPECIFIED
Oswald, MarkusZARM, Uni BremenUNSPECIFIED
Döringshoff, KlausHumboldt University Berlin, GermanyUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Sanjuan Munoz, JoseJose.Sanjuan (at) dlr.deUNSPECIFIED
Resch, AndreasAndreas.Resch (at) dlr.deUNSPECIFIED
Abich, KlausKlaus.Abich (at) dlr.deUNSPECIFIED
Kovalchuk, EvgenyHumboldt University Berlin, GermanyUNSPECIFIED
Peters, AchimHumboldt University Berlin, GermanyUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Date:October 2017
Journal or Publication Title:Scientific and Fundamental Aspects of GNSS / Galileo
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Optical clock, Navigation, GNSS, Galileo, Iodine Reference
Event Title:6th International Colloquium on Scientific and Fundamental Aspects of GNSS/Galileo
Event Location:Valencia, Italien
Event Type:international Conference
Event Dates:25 - 27 October 2017
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:27 Jun 2018 11:46
Last Modified:02 Oct 2018 12:09

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