495 citations · 1.1k across the 12 of their papers we have counts for
12 papers
Direct comparisons of European primary and secondary frequency standards via satellite techniques
F. Riedel, A. Al-Masoudi, E. Benkler +46
We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-bas…
A microrod optical-frequency reference in the ambient environment
Wei Zhang, Fred Baynes, Scott A. Diddams +1
We present an ultrahigh-, solid-silica microrod resonator operated under ambient conditions that supports laser-fractional-frequency stabilization to the thermal-noise limit of…
Absolute frequency measurement of the SF optical clock transition in Yb with an uncertainty of using a frequency link to International Atomic Time
Charles F. A. Baynham, Rachel M. Godun, Jonathan M. Jones +8
The highly forbidden SF electric octupole transition in Yb is a potential candidate for a redefinition of the SI second. We present a…
Geodesy and metrology with a transportable optical clock
Jacopo Grotti, Silvio Koller, Stefan Vogt +21
The advent of novel measurement instrumentation can lead to paradigm shifts in scientific research. Optical atomic clocks, due to their unprecedented stability and uncertainty, are…
Test of special relativity using a fiber network of optical clocks
P. Delva, J. Lodewyck, S. Bilicki +28
Phase compensated optical fiber links enable high accuracy atomic clocks separated by thousands of kilometers to be compared with unprecedented statistical resolution. By searching…
A compact, thermal noise limited reference cavity for ultra-low noise microwave generation
J. Davila-Rodriguez, F. N. Baynes, A. D. Ludlow +4
We demonstrate an easy to manufacture, 25 mm long ultra-stable optical reference cavity for transportable photonic microwave generation systems. Employing a rigid holding geometry…
A microrod-resonator Brillouin laser with 240 Hz absolute linewidth
William Loh, Joe Becker, Daniel C. Cole +4
We demonstrate an ultralow-noise microrod-resonator based laser that oscillates on the gain supplied by the stimulated Brillouin scattering optical nonlinearity. Microresonator Bri…
Bounds on higher-order Lorentz-violating photon sector coefficients from an asymmetric optical ring resonator experiment
Stephen R. Parker, Matthew Mewes, Fred N. Baynes +1
Optical resonators provide a powerful tool for testing aspects of Lorentz invariance. Here, we present a reanalysis of an experiment where a path asymmetry was created in an optica…
Attosecond Timing in Optical-to-Electrical Conversion
Fred N. Baynes, Franklyn Quinlan, Tara Fortier +4
The most frequency-stable sources of electromagnetic radiation are produced optically, and optical frequency combs provide the means for high fidelity frequency transfer across hun…
Nano-Kelvin thermometry and temperature control: beyond the thermal noise limit
Wenle Weng, James D. Anstie, Thomas M. Stace +3
We demonstrate thermometry with a resolution of 80 using an isotropic crystalline whispering-gallery mode resonator based on a dichroic dual-mode…
Optical amplification and pulse interleaving for low noise photonic microwave generation
Franklyn Quinlan, Fred N. Baynes, Tara M. Fortier +4
We investigate the impact of pulse interleaving and optical amplification on the spectral purity of microwave signals generated by photodetecting the pulsed output of an Er:fiber-b…
Testing Lorentz Invariance Using an Odd-Parity Asymmetric Optical Resonator
Fred Baynes, Andre Luiten, Michael Tobar
We present the first experimental test of Lorentz invariance using the frequency difference between counter-propagating modes in an asymmetric odd-parity optical resonator. This ty…