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9th Symposium on Frequency Standards and Metrology

16–20 Oct 2023
Kingscliff, NSW, Australia
Australia/Sydney timezone

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Session

Microwave Clocks and Oscillators

19 Oct 2023, 09:00
Kingscliff, NSW, Australia

Kingscliff, NSW, Australia

Mantra on Salt Beach Kingscliff, Tweed Coast Gunnamatta Avenue, Kingscliff NSW

Conveners

Microwave Clocks and Oscillators

  • Enrico Rubiola (CNRS FEMTO-ST Institute, and INRiM)

Presentation materials

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  1. 157. Low-phase Noise Sapphire Oscillators with Improved Frequency Stability
    Eugene N. Ivanov (Quantum Technologies and Dark Matter Labs, Department of Physics, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.)
    19/10/2023, 09:00
    Precision and Low Noise Signal Generation and Techniques
    Invited Oral

    We show that low-phase noise and high-frequency stability can be simultaneously achieved in microwave sapphire oscillators. We describe the 9 GHz sapphire oscillator with interferometric signal processing, which was phase-locked to a stable RF reference by controlling microwave power dissipated in the sapphire resonator. The SSB phase noise of the oscillator was measured to be close to -170...

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  2. 34. Robust Design and Performance of NPL Cs Fountain Clocks
    Krzysztof Szymaniec
    19/10/2023, 09:30
    SI definition, Clocks and Time Scales
    Invited Oral

    Atomic fountain clocks have become ubiquitous in maintaining the most stable national time scales within nanoseconds of UTC. After three decades of development, they offer accuracy of about 1 part in 10^16. Recent efforts have been aiming at increased reliability and robust commercial design. We present the distinctive design approach and performance of the NPL built fountains, as well as...

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  3. 31. Atomic Clock Ensemble in Space
    Luigi Cacciapuoti (European Space Agency)
    19/10/2023, 10:00
    Precision Tests on Fundamental Physics
    Invited Oral

    The Atomic Clock Ensemble in Space (ACES) mission is developing high performance clocks and links for space to test Einstein's theory of general relativity. From the International Space Station, the ACES payload will distribute a clock signal with fractional frequency instability and inaccuracy of $1\times10^{-16}$ establishing a worldwide network to compare clocks in space and on ground. ACES...

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