Laser systems for precision measurements of fundamental physics in space

Paper number

IAC-15,A2,1,7,x27843

Author

Mr. Vladimir Schkolnik, Humboldt-Universität zu Berlin, Germany

Coauthor

Dr. Markus Krutzik, Humboldt-Universität zu Berlin, Germany

Coauthor

Dr. QUANTUS Team, Germany

Coauthor

Mr. FOKUS Team, Germany

Coauthor

Prof. Achim Peters, Humboldt University of Berlin, Germany

Year

2015

Abstract

Laser systems with precise and accurate frequencies are the key element in high precision experiments such as atom interferometers and atomic clocks. Future space missions probing the structure of our universe with quantum based tests of the equivalence principle or the detection of gravitational waves require robust and compact lasers with exceptionally high mechanical and frequency stability. We present a new generation of such compact diode laser systems optimized for precision measurements with ultra-cold atoms aboard sounding rockets. 

The design, assembly and qualification of a laser system for experiments with degenerate Rubidium 87 in space during the MAIUS (Matter-wave Interferometry under Microgravity) mission will be presented. Payloads for two other sounding rocket experiments will also be reported. Firstly, FOKUS a laser system which will operate together with a rocket-borne frequency comb on the TEXUS 51 mission and secondly, KALEXUS containing two narrow line-width extended cavity diode lasers (ECDLs) for potassium spectroscopy. The laser system includes a redundancy architecture for reliable operation. The system will be integrated together with control and driver electronics within a pressurized payload module and will operate autonomously on the TEXUS 53 mission. All presented laser systems are to be launched within the next 12 months.

This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy under grant numbers DLR 50WM 1237 and 1345.

Abstract document

IAC-15,A2,1,7,x27843.brief.pdf

Manuscript document

IAC-15,A2,1,7,x27843.pdf (🔒 authorized access only).

To get the manuscript, please contact IAF Secretariat.