The Photonic Microsystems Group develops microphotonic elements, circuits, and systems for a variety of applications, including communications, sensing, and coupled microwave-photonic circuits, often enabling fundamental advantages over traditional implementations. Microphotonic devices are combined to form large-scale circuits and systems such as low power inter-chip networks, thermal imagers, nanophotonic phased arrays for high-speed beam steering, and optical-microwave oscillators for precision timing.