公开(公告)号：US12265263B2

公开(公告)日：2025-04-01

申请号：US17567020

申请日：2021-12-31

Applicant: Ayar Labs, Inc.

Inventor： John Fini ,  Uma Krishnamoorthy

IPC: G02B6/34 ,  G02B6/27

Abstract: An optical grating coupler includes a primary layer formed of a material having a first refractive index. A first plurality of scattering elements is formed within the primary layer. The first plurality of scattering elements has a second refractive index that is different than the first refractive index. A secondary layer is formed over the primary layer. The secondary layer is formed of a material having a third refractive index. A second plurality of scattering elements is formed within the secondary layer. The second plurality of scattering elements has a fourth refractive index that is different than the third refractive index. The fourth refractive index is different than the second refractive index. At least some of the second plurality of scattering elements at least partially overlap corresponding ones of the first plurality of scattering elements.

公开(公告)号：US20220214502A1

公开(公告)日：2022-07-07

申请号：US17567020

申请日：2021-12-31

Applicant: Ayar Labs, Inc.

Inventor： John Fini ,  Uma Krishnamoorthy

IPC: G02B6/34 ,  G02B6/27

Abstract: An optical grating coupler includes a primary layer formed of a material having a first refractive index. A first plurality of scattering elements is formed within the primary layer. The first plurality of scattering elements has a second refractive index that is different than the first refractive index. A secondary layer is formed over the primary layer. The secondary layer is formed of a material having a third refractive index. A second plurality of scattering elements is formed within the secondary layer. The second plurality of scattering elements has a fourth refractive index that is different than the third refractive index. The fourth refractive index is different than the second refractive index. At least some of the second plurality of scattering elements at least partially overlap corresponding ones of the first plurality of scattering elements.