Stanford researchers at the Vuckovic Lab have developed a dispersion engineered phased array which can be used as a beam steering device for compact LIDAR or ranging systems critical for self-driving cars, logistics, and the security sector.
Stanford researchers developed a method to make large phase shifts with little or no power dissipation in integrated optics. The approach uses a directional coupler moved by a MEMS actuator to achieve a path delay, i.e. an effective change in refractive index.