Optical device having a quantum-dot structure

US7968863B2 · kind B2 · utility

Assignee

• Alcatel Lucent · FR

Inventors

• François Lelarge · Marcoussis, FR
• Benjamin Rousseau · Somerville, US
• Alain Accard · Palaiseau, FR
• Frederic Pommereau · Brétigny-sur-Orge, FR
• Francis Poingt · Palaiseau, FR
• Romain Brenot · Marcoussis, FR

Key dates

• Filing date: Jun 11, 2009
• Grant date: Jun 28, 2011
• Expiry date: Feb 6, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S438/962
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Method of manufacturing an optical device, and an optical device, the optical device having one or more layers (13) of quantum-dots located in-between barrier layers (12). A spacer layer (15) is grown on a barrier layer (12), such that the spacer layer (15) is adapted for substantially blocking strain fields induced by quantum-dot layers, thereby producing a smooth growth front for a subsequent barrier layer (12).