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Using aluminum-nitride photonic-chip waveguides, we generate optical frequency comb supercontinuum spanning 500 to 4000 nm. We detect and stabilize the offset frequency of the compact laser comb oscillator directly using the waveguide output.
We demonstrate a frequency-stabilized, dual-Kerr microcomb that guides an integrated Vernier-laser optical frequency synthesizer, all derived from an RF clock. The synthesizer's stability is <10−12/τ with Hz-level tuning resolution across a 32 nm tuning range.
We introduce an architecture for optical-frequency synthesis using photonic-chip frequency combs and a heterogeneously integrated CW laser. The Kerr dual-comb that we describe offers a microwave-optical link to discipline the laser to an RF clock.
We introduce piezo-electric mechanical control and stabilization of frequency combs produced in novel, laser-machined microresonators. The residual and absolute 1-second-stabilities of the 33 GHz comb spacing are 5×10−14 and ≤1.4×10−12, respectively.
We present a novel fabrication method for ultra-high-Q fused silica microresonators using CO2 laser machining. These resonators are used to investigate an all-optical stabilization scheme of their mode spectrum with a frequency doubled control laser.
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