| Abstract: | Optical-frequency combs are versatile tools for measuring time, identifying chemicals, sensing
distance, and supporting quantum-information science. A new direction is to produce frequency
combs through intriguing nonlinear behaviors of light in Kerr resonators. Experiments with
whispering-gallery-mode and waveguide-ring configurations have been highly productive,
exploring the formation, properties, and uses of soliton pulses that are the nonlinear eigenstate of
the resonator. I will discuss Kerr-frequency-comb experiments at NIST that explore ultraprecise
measurements, including optical synthesis and optical-atomic clocks, and emerging nonlinear
solon dynamics
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