Multicolor photonic crystal laser array

US9020005B2 · kind B2 · utility

Assignee

• Sandia Corporation · US

Inventors

• Jeremy Benjamin Wright · Albuquerque, US
• Igal Brener · Albuquerque, US
• Ganapathi S. Subramania · Ames, US
• George T. Wang · Albuquerque, US
• Qiming Li · Beijing, CN

Key dates

• Filing date: Feb 3, 2014
• Grant date: Apr 28, 2015
• Expiry date: Feb 3, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/42
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A multicolor photonic crystal laser array comprises pixels of monolithically grown gain sections each with a different emission center wavelength. As an example, two-dimensional surface-emitting photonic crystal lasers comprising broad gain-bandwidth III-nitride multiple quantum well axial heterostructures were fabricated using a novel top-down nanowire fabrication method. Single-mode lasing was obtained in the blue-violet spectral region with 60 nm of tuning (or 16% of the nominal center wavelength) that was determined purely by the photonic crystal geometry. This approach can be extended to cover the entire visible spectrum.