The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Mar. 03, 2023
Ciena Corporation, Hanover, MD (US);
Jean-Philippe Bérubé, Saint-Augustin, CA;
Marie-Josee Picard, L'Ancienne-Lorette, CA;
Ciena Corporation, Hanover, MD (US);
Abstract
An apparatus for coupling an external optical interface to a first optical interface of a photonic integrated circuit comprises: a substrate comprising an optically transmissive material; and a first optical waveguide core formed in proximity to a first surface of the substrate. The first optical waveguide core comprises: a first portion comprising the external optical interface, a second portion that is (1) adjacent to the first surface of the substrate, and (2) adjacent to a second surface of the substrate at an acute angle with the first surface of the substrate, and a third portion between the first and second portions that is separated from the first surface of the substrate by a thickness of the optically transmissive material.