SAMOP 2021 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 7: Precision Measurements
Q 7.1: Poster
Tuesday, September 21, 2021, 16:30–18:30, P
Prototype of a compact rubidium-based optical frequency reference for operation on nanosatellites — •Aaron Strangfeld1,2, Simon Kanthak1,2, Max Schiemangk2, Benjamin Wiegand1, Andreas Wicht2, Alexander Ling3, and Markus Krutzik1,2 — 1Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Deutschland — 2Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Deutschland — 3Centre for Quantum Technologies, National University of Singapore, Block S15, 3 Science Drive 2, Singapore 117543, Singapur
A compact laser system with integrated spectroscopy unit was developed as a prototype for optical frequency references on nanosatellites. Light from a distributed feedback laser diode is used for spectroscopy of rubidium in a vapor cell. The microintegration of optics with a size of a few millimeters allowed a significant size reduction (70× 26× 19 mm3) while maintaining the performance of larger realizations: σy(τ=1 s)=1.7× 10−12.
This work has been done in a joint collaboration between Humboldt-Universität zu Berlin and National University of Singapore, supported by the Berlin University Alliance and by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number 50RK1971. The microintegration was realized at Ferdinand-Braun-Institut gGmbh, Leibniz-Institut für Höchstfrequenztechnik.