Patent · US Active

Multi-mode spiral delay device

US11391890B1 · kind B1 · utility

1Cited by

7References

19Claims

0Family size

Assignees

PsiQuantum Corp. · US
The University of Bristol · GB

Inventors

Damien Bonneau · Bristol, GB
Mark Thompson · Palo Alto, US

Key dates

Filing date	May 15, 2020
Grant date	Jul 19, 2022
Priority date	—
Expiry date	May 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH01P9/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical device includes a first multi-mode waveguide, a first optical coupler coupled to the first multi-mode waveguide, the first coupler being tapered and curved, and a first single-mode waveguide having a first end coupled to the first optical coupler. The optical device maybe used in an optical delay device. A method of propagating light in a first multi-mode waveguide toward a first optical coupler, propagating the light in the first optical coupler toward a first single-mode waveguide, the first optical coupler being tapered and curved, and propagating the light along the first single-mode waveguide is also disclosed.

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