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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
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Micro-integrated extended cavity diode lasers for precision potassium spectroscopy in space
Optics Express
|April 11, 2014
Summary
We developed a space-ready laser module for potassium atom experiments. This extended cavity diode laser is tunable and robust, showing no performance loss after rigorous space qualification tests.
Area of Science:
- Atomic, Molecular, and Optical Physics
- Quantum Optics
- Space Science
Background:
- Bose-Einstein condensates and atom interferometry require stable, tunable laser sources.
- Space-based quantum optics experiments necessitate robust, radiation-hardened instrumentation.
Purpose of the Study:
- To present a micro-integrated, extended cavity diode laser module for space applications.
- To qualify the laser module for demanding space environments.
- To enable advanced potassium atom experiments in space.
Main Methods:
- Development of a micro-integrated extended cavity diode laser module.
- Characterization of laser performance: 766.7 nm emission, 27.5 GHz tunability, sub-100 kHz linewidth.
- Space qualification through vibration (8.1 g(RMS), 21.4 g(RMS)) and mechanical shock (1500 g) testing.
Main Results:
- The laser module operates at the potassium D2-line (766.7 nm).
- Achieved 27.5 GHz continuous tunability with a narrow emission linewidth (<100 kHz).
- Demonstrated resilience to extreme vibration and shock tests without performance degradation.
Conclusions:
- The developed laser module is suitable for space-based quantum optics experiments.
- The robust design ensures reliable performance in harsh space conditions.
- Facilitates future research in space-based Bose-Einstein condensates and atom interferometry.
