Wavelength selective transfer of optical energy

US11460639B2 · kind B2 · utility

Assignee

• Lawrence Livermore National Security, LLC · US

Inventors

• Graham S. Allen · Livermore, US
• Diana Chen · Gilbert, US
• Matthew J. Cook · Brentwood, US
• Robert P. Crist · Tracy, US
• Derrek R. Drachenberg · Livermore, US
• Jay W. Dawson · Livermore, US
• Victor V. Khitrov · San Ramon, US
• Leily Kiani · Napa, US
• Michael J. Messerly · Danville, US
• Paul H. Pax · Union City, US
• Nick Schenkel · Livermore, US

Key dates

• Filing date: Jun 18, 2019
• Grant date: Oct 4, 2022
• Expiry date: Jun 18, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/30
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An all fiber wavelength selective coupler provides wavelength selective transfer of optical energy between two or more separated waveguides. The coupler includes signal cores that are separated enough that they can be fusion spliced to standard fibers as lead-in and lead-out pigtails. A bridge between the signal cores facilitates transfer of the optical energy through a process of evanescent coupling. In one example, the bridge is formed of a series of graded index cores.