Nichtflüchtiges Schaltbares Photonisches Bauelement mit Phasenwechselmaterial

Details

Veröffentlichungs-Nr.

EP4745655

Anmeldetag

15. November 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

IPC

G02F1/01, G02B6/122, G02F1/025(SHANK STEVEN M et al.)

Abstract

The invention relates to a photonic component for setting non-volatile operational states, comprising:- At least one light-guiding structure (3) formed in a silicon layer of a silicon-on-insulator substrate (2);- At least one switching element (4) formed by an optical phase change material (8) and a heating structure (7) underneath thereof, wherein the at least one switching element (4) is laterally neighbored to the at least one light-guiding structure (3) so as to provide an evanescent coupling between the at least one light-guiding structure (3) and at least one switching element (4);wherein the heating structure (7) of the switching element (4) is formed by a thinned portion of the silicon layer (22) of the silicon-on-insulator-substrate (2) with the lowest silicon thickness to provide a current path through the silicon layer (22), particularly along the direction of arrangement of the at least one light-guiding structure (3) and the at least one switching element (4), so that the current density of the current path is highest in the heating structure (7) of the at least one switching element (4).

Anmelder

Firma

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

Land

🇨🇭 Schweiz

Fachgebiete