公开(公告)号：US20250020806A1

公开(公告)日：2025-01-16

申请号：US18711782

申请日：2023-01-26

Applicant: UNIVERSITY OF WASHINGTON

Inventor： Mo Li ,  Bingzhao Li ,  Qixuan Lin

IPC: G01S17/34 ,  G01S7/481 ,  G01S7/4912 ,  G01S17/89 ,  G02F1/33

Abstract: Systems, modules, methods, and machine-readable storage media for Frequency Angular Resolving (FAR) are described. In an embodiment, the system comprises a transmitter and a receiver. In an embodiment, the transmitter comprises a source of electromagnetic radiation; a driver circuit configured to generate a drive signal at an oscillation frequency; an acousto-optical beam steering device optically coupled with the source of electromagnetic radiation and the driver circuit and configured to emit electromagnetic radiation at an emission angle as a function of the oscillation frequency. In an embodiment, the receiver comprises a radiation sensor optically coupled with the source of electromagnetic radiation. In an embodiment, the system comprises an electro-optic modulator optically coupled to the source of electromagnetic radiation, the electro-optic modulator configured to modulate a frequency of light emitted to the acousto-optical beam steering device.

公开(公告)号：US20230408851A1

公开(公告)日：2023-12-21

申请号：US18333113

申请日：2023-06-12

Applicant: UNIVERSITY OF WASHINGTON

Inventor： Mo Li ,  Han Zhao ,  Bingzhao Li

IPC: G02F1/00 ,  G02F1/03 ,  G02F1/035

CPC classification number: G02F1/0072 ,  G02F2203/15 ,  G02F1/0356 ,  G02F1/0311

Abstract: Systems and methods for optical computation and acousto-optic modulation are described. The systems and methods comprise acousto-optic modulators with reflectors and transducers used for actuation and modulation of mechanical waves. The systems further comprise multilayer optical computing systems incorporating arrays of acousto-optic modulators. In an embodiment, the acousto-optic modulator comprises a substrate; an optical layer coupled to a first portion of the substrate, the optical layer comprising: a free-standing portion shaped and positioned to define a gap between the free-standing portion of the optical layer and the substrate; and a rib waveguide comprising a photonic crystal, formed in the free-standing portion; and a piezoelectric transducer mechanically coupled to the free-standing portion, wherein the piezoelectric transducer comprises a piezoelectric material and a plurality of conductive electrodes disposed in electrically conductive contact with the piezoelectric material, the plurality of conductive electrodes extending from a base portion of the piezoelectric transducer.