micro-ring resonators tagged posts

New Device Modulates light a Light Without Dimming it—with the Smallest Footprint and Lowest Power Consumption

A visible-spectrum phase modulator (the ring at the center of a radius of 10 microns) is tinier than a butterfly wing scale. Photo credit: Heqing Huang and Cheng-Chia Tsai/Columbia Engineering

Engineers have invented a breakthrough visible-spectrum, compact, power-efficient, low-loss phase modulator – a breakthrough in integrated photonics; the device will improve LIDAR for remote sensing, AR/VR goggles, quantum information processing chips, implantable optogenetic probes, and more.

Over the past several decades, researchers have moved from using electric currents to manipulating light waves in the near-infrared range for telecommunications applications such as high-speed 5G networks, biosensors on a chip, and driverless cars...

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