Patent · US Active

Acousto-optic gyroscopes

US11112245B2 · kind B2 · utility

0Cited by

3References

23Claims

0Family size

Assignee

CARNEGIE MELLON UNIVERSITY · US

Inventors

Gianluca Piazza · Lodi, IT
Mohamed Mahmoud · Sunnyvale, US
Ashraf Mahmoud · New Albany, US
Lutong Cai · Pittsburgh, US
Md Shofiqul Islam Khan · Pittsburgh, US
Tamal Mukherjee · Pittsburgh, US
James A. Bain · Pittsburgh, US

Key dates

Filing date	Oct 3, 2018
Grant date	Sep 7, 2021
Priority date	—
Expiry date	Aug 25, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG10K11/36
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An Acousto-Optic Gyroscope (AOG) consisting of a photonic integrated device embedded into two inherently matched piezoelectric surface acoustic wave (SAW) resonators sharing the same acoustic cavity is disclosed. The micromachined strain-based AOG uses the effective index of the optical waveguide due to the acousto-optic effect rather than conventional displacement sensing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.