Patent · US Active

Method of producing a device for adiabatic coupling between waveguide arrays, corresponding device, and system

US10761279B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

STMicroelectronics SA

Inventors

Mark Andrew Shaw · Sammamish, US
Luca Maggi · Garlate, IT
Antonio Fincato · Novara, IT

Key dates

Filing date	May 31, 2019
Grant date	Sep 1, 2020
Priority date	—
Expiry date	May 31, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12147
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method includes providing a semiconductor body comprising a surface with a recessed portion therein. The recessed portion includes a bottom surface. Optical waveguide cores in a first array of optical waveguide cores extend side-by-side at the bottom surface. The method further includes providing a second array of optical waveguide cores over the first array of optical waveguide cores. Optical waveguide cores in the second array of optical waveguide cores extend side-by-side. Each optical waveguide core in the second array of optical waveguide cores is in an adiabatic coupling relationship with a corresponding optical waveguide core in the first array of optical waveguide cores. The method also includes applying an optical waveguide cladding material over the second array of optical waveguide cores.

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