Low-noise and accessible millimeter-wave sources are critical for emergent
telecommunications, Radar- und Sensoranwendungen. Current limitations to
realizing low-noise, Zu den einsetzbaren Millimeterwellensystemen gehört die Größe, Gewicht,
und Macht (Tauschen) Anforderungen, sowie komplexe Funktionsprinzipien. Dabei
paper we provide a compact photonic implementation for generating low phase
noise millimeter-waves, which significantly simplifies the architecture and
reduces the volume compared to alternative approaches. Two commercial diode
lasers are self-injection-locked to a micro-Fabry-Perot cavity, and their
heterodyne provides low phase noise millimeter waves reaching -148 dBc/Hz at 1
MHz offset on a 111.45 GHz carrier. Phase noise characterization at such levels
and frequencies poses unique challenges, and we further highlight the
capabilities of optically-based measurement techniques. Our approach to
millimeter-wave generation can leverage advances in photonic integration for
further miniaturization and packaging, thus providing a unique source of
accessible, compact, and low-noise millimeter waves.

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