Patent ID: 6771680
Filing Date: 2004-08-03
Classification: B82Y,H01S

Abstract:
An electrically-pumped vertical-cavity surface-emitting laser (VCSEL), comprising:a pair of distributed Bragg reflectors (DBRs); an optical cavity located between the DBRs; active regions located in the optical cavity; p-i-n junction structures equal in number to the active regions, each of the active regions constituting the intrinsic (i) layer of a corresponding one of the p-i-n junction structures, wherein each of the p-i-n junction structures includes p-type material, n-type material, a p-i junction between the p-type material and the corresponding one of the active regions, and an i-n junction between the corresponding one of the active regions and the n-type material; and the p-i junction is disposed substantially orthogonally to the n-i junction.