SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 59: Poster IV
Q 59.42: Poster
Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof
Development of a Miniaturized Two-photon Frequency Reference Towards Application on a Small Satellite Mission — •Daniel Emanuel Kohl1,2, Julien Kluge1,2, Moritz Eisebitt2,3, Klaus Döringshoff1,2, Sten Wenzel2, Andrea Knigge2, Andreas Wicht2, and Markus Krutzik1,2 — 1Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik — 2Institut für Physik, Humboldt-Universität zu Berlin — 3II. Physikalisches Institut, RWTH Aachen University
Global navigation satellite systems require precise clocks with stringent constraints on size, weight and power budget. Two-photon spectroscopy of the rubidium 5S-5D transition in conjunction with optical frequency combs can provide compact, high precision clocks for next generation GNSS systems. We present a two-photon rubidium frequency reference set-up, achieving fractional frequency instabilities in the regime of 10−13/√τ.
Furthermore, we present a prototype of a compact set-up, featuring a monolithically integrated extended cavity diode laser and a miniaturized, heated and magnetically shielded 1 cm long vapor cell. Details of the vapor cell assembly and the lasers system will be shown. This work, in combination with advanced micro-integration techniques, may lead to ultra-compact, low power but high performant optical frequency references.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number 50RK1971, 50WM2164.