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Proceedings Paper • Open Access

A high-performance iodine-based frequency reference for space applications
Author(s): Thilo Schuldt; Klaus Döringshoff; Matthias Reggentin; Evgeny V. Kovalchuk; Martin Gohlke; Dennis Weise; Ulrich Johann; Achim Peters; Claus Braxmaier

Paper Abstract

We present the development of a compact optical frequency reference with a stability in the 10-15 domain at longer integration times utilizing Doppler-free spectroscopy based on molecular iodine. With respect to its future application in space, a setup on elegant breadboard (EBB) level was realized and successfully implemented and tested. A frequency stability of 5 • 10-15 at an integration time of 200 s was verified in a beat measurement with a ULE cavity setup. For ensuring high thermal and mechanical stability, the EBB utilizes a baseplate made of ultra-low CTE glass ceramics. The optical components are fixed to the baseplate using an adhesive bonding technology. In a current activity, a setup on engineering model (EM) level will be realized with increased compactness and stability compared to the EBB setup utilizing a very compact multipass gas cell.

Paper Details

Date Published: 20 November 2017
PDF: 6 pages
Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 105641N (20 November 2017); doi: 10.1117/12.2309085
Show Author Affiliations
Thilo Schuldt, Univ. of Applied Sciences Konstanz (Germany)
Klaus Döringshoff, Humboldt-Univ. Berlin (Germany)
Matthias Reggentin, Humboldt-Univ. Berlin (Germany)
Evgeny V. Kovalchuk, Humboldt-Univ. Berlin (Germany)
Martin Gohlke, Humboldt-Univ. Berlin (Germany)
Astrium GmbH (Germany)
Dennis Weise, Astrium GmbH (Germany)
Ulrich Johann, Astrium GmbH (Germany)
Achim Peters, Humboldt-Univ. Berlin (Germany)
Claus Braxmaier, Astrium GmbH (Germany)
Univ. Bremen (Germany)
Institute of Space Systems (Germany)

Published in SPIE Proceedings Vol. 10564:
International Conference on Space Optics — ICSO 2012
Bruno Cugny; Errico Armandillo; Nikos Karafolas, Editor(s)

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