Optischer Randkoppler

Details

Veröffentlichungs-Nr.

EP4749341

Anmeldetag

25. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

G02B6/30, G02B6/12, G02B6/136

Abstract

A photonic integrated circuit (PIC) includes an optical edge coupler configured to optically couple the PIC to an optical fiber. The edge optical coupler comprises an optical waveguide core that is at least 2 microns thick and is disposed over a first cladding layer configured to guide light of an operating wavelength of the PIC in the optical waveguide core. The optical waveguide core and the first cladding layer have a low refractive index difference therebetween to form a weakly guiding waveguide. In an example implementation, the PIC is silicon-based, and both the cladding and the optical core of the edge optical coupler include a silicon oxide material.

Anmelder

Firma

Nokia Solutions and Networks Oy

Land

🇫🇮 Finnland