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1. WO2020157741 - STRUCTURE POUR FACETTE DE GUIDE D'ONDES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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CLAIMS

1. An input or output facet for an on-chip optical waveguide, the facet comprising a grid of gradually expanding unit- cells .

2. The facet of claim 1, wherein each of the gradually expanding unit cells expands in the direction from the outer of the waveguide towards the interior of the waveguide.

3. The facet of claim 1, wherein the gradually expanding unit cells are selected from a group comprising cones or pyramids.

4. The facet of claim 1, wherein the gradually expanding unit cells are cones, pyramids, or a combination thereof.

5. The facet of claim 1, wherein the gradually expanding unit cells are selected from the group comprising truncated cones, hemispherical cones, and parabolic cones.

6. The facet of claim 1, wherein the unit cells are arranged on the facet in a staggered grid form.

7. The facet of claim 1, wherein the unit cells are arranged on the facet in a linear grid form.

8. The facet of claim 1, wherein the gradually expanding unit cells are engraved on the facet.

9. The facet of claim 8, wherein the engravement of the gradually expanding unit cells is performed by a FIB machine.

10. An on-chip optical waveguide comprising at least one of input or output facets, each of said facets comprising a grid of gradually expanding unit-cells .

11. The optical waveguide of claim 10, wherein each of said gradually expanding unit cells expands in the direction from the outer of the waveguide towards the interior of the waveguide .

12. The optical waveguide of claim 10, wherein the gradually expanding unit cells are selected from a group comprising cones or pyramids .

13. The optical waveguide of claim 10, wherein the gradually expanding unit cells are cones, pyramids, or a combination thereof .

14. The optical waveguide of claim 10, wherein the gradually expanding unit cells are selected from the group comprising truncated cones, hemispherical cones, and parabolic cones.

15. The optical waveguide of claim 10, wherein the unit cells are arranged on the facet in a staggered grid form.

16. The optical waveguide of claim 10, wherein the unit cells are arranged on the facet in a linear grid form.

17. The optical waveguide of claim 10, wherein the gradually expanding unit cells are engraved on the facet.

18. The optical waveguide of claim 17, wherein the engravement of the gradually expanding unit cells is performed by a FIB machine .