SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 17: Integrated Photonics I (joint session Q/QI)
Q 17.5: Talk
Tuesday, March 7, 2023, 12:15–12:30, E001
Development of micro-integrated optical systems for atom-based quantum sensors — •Conrad Zimmermann, Marc Christ, and Markus Krutzik — Ferdinand-Braun-Institut (FBH), Berlin, Germany
Compact and mobile quantum sensors enable a broad range of applications in e.g. navigation and field-sensing with high sensitivity. The size and weight requirements derived from these applications place high demands on the degree of miniaturization, integration and robustness of all subsystems of such a device. Working on the physics package, we develop and qualify necessary integration technologies to realize miniaturized, ultra-stable optical systems and increase their functionality. Using these techniques, we set up a micro-integrated optical distribution system with a volume of ∼25 ml to generate a crossed beam optical dipole trap. The two high-power laser beams precisely overlap in their focal points (ω0 = 32 µm), and the system exhibits a high mechanical and thermal alignment stability. We present initial results from its operation in a cold atom experiment.
One approach to further reduce the overall size of a cold-atom based quantum sensor is to integrate optical setups within the vacuum system. We show development and qualification efforts for future in-UHV optical systems for atom trapping and manipulation.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Climate Action (BMWK) due to an enactment of the German Bundestag under grant numbers 50RK1978 and 50WM1949.