207 citations · 636 across the 14 of their papers we have counts for
14 papers
FPGA-based residual amplitude modulation suppression and control for compact atomic clocks
Tin Nghia Nguyen, Thomas R. Schibli
We designed an FPGA fabric to provide phase modulation techniques to lock lasers to optical frequency references. The method incorporates an active residual-amplitude-modulation (R…
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…
Temperature shift suppression scheme for two-photon two-color rubidium vapor clocks
Tin Nghia Nguyen, Thomas R. Schibli
We propose a new scheme for interrogating a warm rubidium vapor using two different clock lasers. Performance-wise, this approach is distinctly different from the recently proposed…
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…
Phase meter based on zero-crossing counting of digitized signals
Wataru Kokuyama, Hideaki Nozato, Thomas R. Schibli
We developed a compact and easy-to-use phase meter based on a zero-crossing counting algorithm for digitized signals. Owing to the algorithm, the phase meter has low-noise and wide…
Low-noise 750-MHz spaced Yb:fiber frequency combs
Yuxuan Ma, Bo Xu, Hirotaka Ishii +6
We demonstrate two fully and tightly phase locked 750 MHz ytterbium (Yb) fiber frequency combs that are independently stabilized to a continuous wave (CW) laser with <1 rad RMS pha…