Serial arrayed waveguide grating

US11852864B1 · kind B1 · utility

Assignee

• United States of America as represented by the Administrator of NASA · US

Inventors

• Mark A. Stephen · Catonsville, US
• Renan Moreira · Midland School, US
• Fabrizio Gambini · Midland School, US

Key dates

• Filing date: Mar 1, 2022
• Grant date: Dec 26, 2023
• Expiry date: Mar 1, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2006/1215
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An arrayed waveguide for a photonic integrated circuit has a single optical path with serially connected delay lines. Different delayed optical paths or channels are periodically split off from the serially connected optical delay path. This has the net result of requiring much less space on-chip for comparable optical path differences with high spectral resolution.