Leland Stanford Junior University

Jeremy David Witmer

Patricio Arrangoiz Arriola

Amir-Hossein Safavi-Naeini

Christopher John Sarabalis

Amir Safavi-Naeini

Timothy Patrick McKenna

Patricio Arrangoiz-Arriola

Raphael Frank J Van Laer

Raphael Frank Van Laer

Jeff T Hill

Systems and methods for steering an optical beam in two dimensions are disclosed. The system includes a substrate comprising an acousto-optic antenna array and an acoustic transducer. Each antenna of the antenna array includes a high-confinement surface waveguide carrying a light signal. The acoustic transducer imparts acoustic energy into each surface waveguide as a mechanical wave. Interaction of the light signal and mechanical wave in each surface waveguide induces light to scatter into free space. The light scattered out of the plurality of waveguides collectively defines the output beam. The longitudinal angle of output beam, relative to the substrate, is determined by the relative frequencies of the mechanical waves and the light signals. The transverse angle of the output beam is controlled by controlling the relative phases of the mechanical waves and/or light signals across the surface-waveguide array.

Acousto-optic beam steering system

A doubly resonant electro-optic converter is provided. An optical resonator and a microwave resonator are disposed such that fields from the two resonators can interact in an electro-optic active medium. The optical resonator is a planar photonic crystal optical resonator, and the microwave resonator is at least partially superconducting in operation. The active medium has a second order nonlinearity capable of generating a sum frequency signal and/or a difference frequency signal from the optical and microwave fields. The resulting structure has both quantum and classical applications.

Doubly-resonant electro-optic conversion using a superconducting microwave resonator

Growing community of inventors

Palo Alto, CA, United States of America

Jeremy David Witmer