54 citations · 86 across the 11 of their papers we have counts for
11 papers
High-performance source of indistinguishable polarization-entangled photons with a local oscillator reference for quantum networking
Michael Grayson, Shawn Meyer, Daniel Sorensen +9
Optical quantum networking protocols impose stringent requirements on the states produced by sources of entanglement. We demonstrate a free-space, compact, source of indistinguisha…
Atomic clock frequency ratios with fractional uncertainty
Alexander Aeppli, Willa J. Arthur-Dworschack, Kyle Beloy +24
We report high-precision frequency ratio measurements between optical atomic clocks based on Al, Yb, and Sr. With total fractional uncertainties at or bel…
Doppler Shift Mitigation in a Chip-Scale Atomic Beam Clock
Alexander Staron, Gabriela Martinez, Nicholas Nardelli +3
Chip-scale microwave atomic systems based on thermal atomic beams offer a promising approach to realize low-power and low-drift clocks for timing holdover applications. Miniature b…
Phase-Stable Optical Fiber Links for Quantum Network Protocols
Nicholas V. Nardelli, Dileep V. Reddy, Michael Grayson +5
We demonstrate the distribution of single-photon-level pulses from a mode-locked laser source over a phase-stable fiber link, achieving an optical timing jitter of less than 100 as…
Sub-femtosecond stabilization of multicore fiber for high-fidelity quantum networking at 100% duty cycle
Takuma Nakamura, Nazanin Hoghooghi, Nicolas Fontaine +8
Originally envisioned as a solution for the capacity crunch in telecommunications networks, multicore fibers (MCF) are contributing to scientific fields beyond telecom, such as sen…
High-Stability Single-Ion Clock with Systematic Uncertainty
Mason C. Marshall, Daniel A. Rodriguez Castillo, Willa J. Arthur-Dworschack +10
We report a single-ion optical atomic clock with fractional frequency uncertainty of and fractional frequency stability of $3.5 \times10^{-16}/\sqrt{τ/\mathrm{s…
Radio Frequency from Optical with Instabilities below - Generation and Measurement
A. Hati, M. Pomponio, N. V. Nardelli +7
This paper presents a frequency synthesis that achieves exceptional stability by transferring optical signals to the radio frequency (RF) domain at 100 MHz. We describe and charact…
Cryogenic sapphire optical reference cavity with crystalline coatings at fractional instability
Jose Valencia, George Iskander, Nicholas V. Nardelli +2
The frequency stability of a laser locked to an optical reference cavity is fundamentally limited by thermal noise in the cavity length. These fluctuations are linked to material d…
Optical and microwave metrology at the 10-18 level with an Er/Yb:glass frequency comb
Nicholas V. Nardelli, Holly Leopardi, Thomas R. Schibli +1
Optical frequency combs are an essential tool for precision metrology experiments ranging in application from remote spectroscopic sensing of trace gases to the characterization an…
10 GHz Generation with Ultra-Low Phase Noise via the Transfer Oscillator Technique
Nicholas V. Nardelli, Tara M. Fortier, Marco Pomponio +4
Coherent frequency division of high-stability optical sources permits the extraction of microwave signals with ultra-low phase noise, enabling their application to systems with str…
Optical coherence between atomic species at the second scale: improved clock comparisons via differential spectroscopy
May E. Kim, William F. McGrew, Nicholas V. Nardelli +9
Comparisons of high-accuracy optical atomic clocks \cite{Ludlow2015} are essential for precision tests of fundamental physics \cite{Safronova2018}, relativistic geodesy \cite{McGre…