Micro-integrated extended cavity diode lasers for precision potassium spectroscopy in space.
We present a micro-integrated, extended cavity diode laser module for space-based experiments on potassium Bose-Einstein condensates and atom interferometry. The module emits at the wavelength of the potassium D2-line at 766.7 nm and provides 27.5 GHz of continuous tunability. It features sub-100 kHz short term (100 μs) emission linewidth. To qualify the extended cavity diode laser module for quantum optics experiments in space, vibration tests (8.1 g(RMS) and 21.4 g(RMS)) and mechanical shock tests (1500 g) were carried out. No degradation of the electro-optical performance was observed.
Erdenetsetseg
E
Luvsandamdin
Christian
C
Kürbis
Max
M
Schiemangk
Alexander
A
Sahm
Andreas
A
Wicht
Achim
A
Peters
Götz
G
Erbert
Günther
G
Tränkle