Heidelberg 2015 – scientific programme
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A: Fachverband Atomphysik
A 19: Precision Measurements and Metrology V (with Q)
A 19.2: Talk
Wednesday, March 25, 2015, 11:15–11:30, C/HSO
Frequency stabilized laser systems for sounding rockets - towards precision measurements in space. — •Vladimir Schkolnik1, Max Schiemangk1,2, Aline Dinkelaker1, Achim Peters1,2, The LASUS Team1,2,3,5, and The KALEXUS Team1,2,4,5 — 1Institut für Physik, Humboldt-Universität zu Berlin — 2FBH Berlin — 3ILP Hamburg — 4JGU Mainz — 5IQO Hannover
Lasers with stable and accurate output frequencies are the key element in high precision experiments such as atom interferometers and atomic clocks. Moreover, future space missions, including quantum based tests of the equivalence principle or the detection of gravitational waves, require such robust and compact lasers with high mechanical and frequency stability.
We present two laser systems that fulfill these requirements. First, a micro-integrated distributed feedback laser (DFB) stabilized to a rubidium transition which will operate together with a frequency comb on the TEXUS 51 sounding rocket mission scheduled for April 2015. The second laser system contains two narrow linewidth extended cavity diode lasers (ECDLs) for potassium spectroscopy, including a redundancy architecture for reliable operation. The system will be integrated together with control and driver electronics within a pressurized payload module and operate autonomously on the TEXUS 53 mission.
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.