Evaluating Optical Clock Performance for GNSS Positioning
Atomic clocks are highly precise timing devices used in numerous Positioning, Navigation,
and Timing (PNT) applications on the ground and in outer space. In recent years, however …
and Timing (PNT) applications on the ground and in outer space. In recent years, however …
Fundamental physics with a state-of-the-art optical clock in space
A Derevianko, K Gibble, L Hollberg… - Quantum Science …, 2022 - iopscience.iop.org
Recent advances in optical atomic clocks and optical time transfer have enabled new
possibilities in precision metrology for both tests of fundamental physics and timing …
possibilities in precision metrology for both tests of fundamental physics and timing …
Reducing the instability of an optical lattice clock using multiple atomic ensembles
The stability of an optical atomic clock is a critical figure of merit for almost all clock
applications. To this end, much optical atomic clock research has focused on reducing clock …
applications. To this end, much optical atomic clock research has focused on reducing clock …
Cs microcell optical reference with frequency stability in the low 10−13 range at 1 s
We describe a high-performance optical frequency reference based on dual-frequency sub-
Doppler spectroscopy (DFSDS) using a Cs vapor microfabricated cell and an external-cavity …
Doppler spectroscopy (DFSDS) using a Cs vapor microfabricated cell and an external-cavity …
Quantum memories for fundamental science in space
JM Mol, L Esguerra, M Meister… - Quantum Science …, 2023 - iopscience.iop.org
Investigating and verifying the connections between the foundations of quantum mechanics
and general relativity will require extremely sensitive quantum experiments. To provide …
and general relativity will require extremely sensitive quantum experiments. To provide …
[HTML][HTML] Application of quantum-limited optical time transfer to space-based optical clock comparisons and coherent networks
With the demonstration of quantum-limited optical time transfer capable of tolerating the
losses associated with long ground-to-space links, two future applications of free-space time …
losses associated with long ground-to-space links, two future applications of free-space time …
Frequency stabilization of a Cesium Faraday laser with a double-layer vapor cell as frequency reference
H Shi, P Chang, Z Wang, Z Liu, T Shi… - IEEE Photonics …, 2022 - ieeexplore.ieee.org
We implement a compact optical frequency standard at the wavelength of 852 nm by the
modulation transfer spectroscopy (MTS) technique, using a Faraday laser as the local …
modulation transfer spectroscopy (MTS) technique, using a Faraday laser as the local …
Optical atomic clock aboard an Earth-orbiting space station (OACESS): enhancing searches for physics beyond the standard model in space
We present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-
orbiting space station. This pathfinder science mission will compare the space-based OAC …
orbiting space station. This pathfinder science mission will compare the space-based OAC …
An ultra-stable laser based on molecular iodine with a short-term instability of 3.3× 10− 15 for space based gravity missions
Z Zhang, Z Wang, H Liu, W Yuan, W You… - … and Quantum Gravity, 2023 - iopscience.iop.org
Many space based gravity missions require frequency stabilized lasers with stringent
requirements. Toward those requirements, we develop a compact frequency-stabilized laser …
requirements. Toward those requirements, we develop a compact frequency-stabilized laser …
Preliminary study of generating a local time scale with NIM 87Sr optical lattice clock
A local time scale can be generated by steering flywheel clocks with state-of-the-art optical
lattice clocks. This paper presents our simulations about the influence of the optical lattice …
lattice clocks. This paper presents our simulations about the influence of the optical lattice …