Laser structure

US9882351B2 · kind B2 · utility

Assignee

• The University Court of the University of Glasgow · GB

Inventors

• Richard J. Taylor · Penrith, GB
• David Childs · Penyffordd, GB
• Richard Hogg · Sheffield, GB

Key dates

• Filing date: Aug 21, 2015
• Grant date: Jan 30, 2018
• Expiry date: Aug 21, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/423
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A laser structure comprising a first photonic crystal surface emitting laser (PCSEL), a second PCSEL, and a coupling region that extends between the first PCSEL and the second PCSEL along a longitudinal axis and that is electrically controllable so as to be capable of coherently coupling the first PCSEL to the second PCSEL. Each PCSEL include an active layer, a photonic crystal, and a two-dimensional periodic array distributed in an array plane parallel to the longitudinal axis within the photonic crystal where the two-dimensional periodic array is formed of regions having a refractive index that is different to the surrounding photonic crystal.