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Tunable 30 GHz laser frequency comb for astronomical spectrograph characterization and calibration
Pooja Sekhar, Molly Kate Kreider, Connor Fredrick +5
The search for earth-like exoplanets with the Doppler radial velocity technique is an extremely challenging and multifaceted precision spectroscopy problem. Currently, one of the l…
A Novel Approach to Interface High-Q Fabry-Pérot Resonators with Photonic Circuits
Haotian Cheng, Naijun Jin, Zhaowei Dai +8
The unique benefits of Fabry-Pérot resonators as frequency-stable reference cavities and as an efficient interface between atoms and photons make them an indispensable resource for…
Photonic chip-based low noise microwave oscillator
Igor Kudelin, William Groman, Qing-Xin Ji +26
Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave ph…
Precision Doppler Shift Measurements with a Frequency Comb Calibrated Laser Heterodyne Radiometer
Ryan K. Cole, Connor Fredrick, Newton H. Nguyen +1
We report precision atmospheric spectroscopy of using a laser heterodyne radiometer (LHR) calibrated with an optical frequency comb. Using the comb-calibrated LHR, we record…
Visible to Ultraviolet Frequency Comb Generation in Lithium Niobate Nanophotonic Waveguides
Tsung-Han Wu, Luis Ledezma, Connor Fredrick +6
The introduction of nonlinear nanophotonic devices to the field of optical frequency comb metrology has enabled new opportunities for low-power and chip-integrated clocks, high-pre…
20 GHz fiber-integrated femtosecond pulse and supercontinuum generation with a resonant electro-optic frequency comb
Pooja Sekhar, Connor Fredrick, David R. Carlson +2
Frequency combs with mode spacing in the range of 10 to 20 gigahertz (GHz) are critical for increasingly important applications such as astronomical spectrograph calibration, high-…