We demonstrate efficient microwave-optical frequency conversion using a released HBAR-on-photonic damascene platform. Thermal tuning of coupled optical ring cavities with integrated heaters allows to operate in the triply resonant transduction scheme.
We demonstrate a Vernier ring laser with linear frequency tuning of 1.5 GHz at 100 kHz chirp rate and wavelength switching with 7 ns rise time and 75 nW power consumption using Si3N4 photonic chip with integrated PZT actuators.
We demonstrate frequency-agile self-injection-locked lasers that exploit photonic wire bonds for connecting piezo-tunable Si3N4 microresonators to DFB lasers. Our devices offer intrinsic linewidths below 100Hz along with highly linear frequency sweeping over more than 1GHz.
We demonstrated a packaged optomechanical accelerometer with resolution of 850ng. The resonance of a 4 million Q Si3N4 microring resonator is modulated by the stress in springs of a released milligram proof mass upon acceleration.
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