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Proceedings Paper

Ultra-low noise microwave signal generation with an optical frequency comb
Author(s): Xiaopeng Xie; Romain Bouchand; Daniele Nicolodi; Michele Giunta; Wolfgang Hänsel; Matthias Lezius; Abhay Joshi; Shubhashish Datta; Christophe Alexandre; Michel Lours; Pierre-Alain Tremblin; Giorgio Santarelli; Ronald Holzwarth; Yann Le Coq
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Paper Abstract

Photonic synthesis of radio frequency waveforms revived the quest for unrivalled microwave purity by its seducing ability to convey the benefits of the optics to the microwave world. In this contribution, we will present a high-fidelity transfer of frequency stability between an optical reference and a microwave signal via a low-noise fiber-based frequency comb and cutting-edge photo-detection techniques. We will show the generation of the purest microwave signal with a fractional frequency stability below 6.5×10-16 at 1 s and a timing noise floor below 41 zs Hz-1/2 (phase noise below -173 dBc Hz-1 for a 12 GHz carrier). This outclasses existing sources and promises a new era for state-of-the-art microwave generation. The characterization is achieved through a heterodyne cross-correlation scheme with lowermost detection noise. This unprecedented level of purity can impact domains such as radar systems, telecommunications and time-frequency metrology. The measurements methods developed here can benefit the characterization of a broad range of signals.

Paper Details

Date Published: 16 February 2018
PDF: 6 pages
Proc. SPIE 10518, Laser Resonators, Microresonators, and Beam Control XX, 105180N (16 February 2018); doi: 10.1117/12.2286316
Show Author Affiliations
Xiaopeng Xie, LNE-SYRTE, Observatoire de Paris, PSL Research Univ., CNRS, Sorbonne Univs., UPMC, Univ. Paris 06 (France)
Romain Bouchand, LNE-SYRTE, Observatoire de Paris, PSL Research Univ., CNRS, Sorbonne Univs., UPMC, Univ. Paris 06 (France)
Daniele Nicolodi, LNE-SYRTE, Observatoire de Paris, PSL Research Univ., CNRS, Sorbonne Univs., UPMC, Univ. Paris 06 (France)
Michele Giunta, Menlo Systems GmbH (Germany)
Max-Planck-Institut für Quantenoptik (Germany)
Wolfgang Hänsel, Menlo Systems GmbH (Germany)
Matthias Lezius, Menlo Systems GmbH (Germany)
Abhay Joshi, Discovery Semiconductors, Inc. (United States)
Shubhashish Datta, Discovery Semiconductors, Inc. (United States)
Christophe Alexandre, CNAM-Lab. Cédric (France)
Michel Lours, LNE-SYRTE, Observatoire de Paris, PSL Research Univ., CNRS, Sorbonne Univs., UPMC, Univ. Paris 06 (France)
Pierre-Alain Tremblin, LP2N, IOGS, CNRS, Univ. de Bordeaux (France)
Giorgio Santarelli, LP2N, IOGS, CNRS, Univ. de Bordeaux (France)
Ronald Holzwarth, Menlo Systems GmbH (Germany)
Max-Planck-Institut für Quantenoptik (Germany)
Yann Le Coq, LNE-SYRTE, Observatoire de Paris, PSL Research Univ., CNRS, Sorbonne Univs., UPMC, Univ. Paris 06 (France)


Published in SPIE Proceedings Vol. 10518:
Laser Resonators, Microresonators, and Beam Control XX
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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