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8 November 2020 CubeSat frequency reference for Quantum technology mission
Ranjita Sapam, Soe Moe Thar, Aaron Strangfeld, Simon Kanthak II, Markus Krutzik II, Alexander Ling
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Proceedings Volume 11525, SPIE Future Sensing Technologies; 115250D (2020) https://doi.org/10.1117/12.2581695
Event: SPIE Future Sensing Technologies, 2020, Online Only
Abstract
We report on our latest progress on the ongoing development of a compact optical frequency reference for CubeSat missions in LEO. This reference will be based on Doppler free laser spectroscopy of rubidium vapor. Our simplified solution is based on frequency modulation spectroscopy using a customized, shielded 5 mm long vapor cell and a monolithic distributed feedback (DFB) laser diode on a mesoscopic breadboard setup. The electro-optical system features miniaturized optics as well as a polarization maintaining fiber coupling inside a housing with dimensions of 70 mm × 26 mm × 19 mm (38 cm³). The latter will be installed on a 90 mm × 80mm electronics board for full functionality of the system. This way, our reference constitutes a key technology for future compact, simple and robust atomic quantum technologies for nanosatellite applications.
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Ranjita Sapam, Soe Moe Thar, Aaron Strangfeld, Simon Kanthak II, Markus Krutzik II, and Alexander Ling "CubeSat frequency reference for Quantum technology mission", Proc. SPIE 11525, SPIE Future Sensing Technologies, 115250D (8 November 2020); https://doi.org/10.1117/12.2581695
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KEYWORDS
Sensors
Absorption
Absorption spectroscopy
Clocks
Metrology
Modulation
Quantum optics
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