Patent ID: 9735545
Date: 2017-08-15
CPC Classifications: H01S

Claim:
1. A vertical cavity surface emitting laser (VCSEL) comprising: a substrate; a bottom distributed Bragg reflector (DBR) including a plurality of layers deposited on the substrate; a first charge confining layer deposited on the bottom DBR; an active region deposited on the first charge confining layer; a second charge confining layer deposited on the active region; a current blocking layer deposited on the second charge confining layer and including a center aperture; a top epitaxial DBR including a plurality of top epitaxial DBR layers deposited on the current blocking layer and in the aperture on the second charge confining layer; a top electrode deposited on the top epitaxial DBR; a bottom electrode deposited on the bottom DBR and adjacent to the active region, wherein a voltage potential provided between the top and bottom electrodes creates a current through the aperture that injects carriers into the active region; and a top dielectric DBR including a plurality of dielectric layers deposited on the top epitaxial DBR, the top electrode and the bottom electrode, wherein the top epitaxial DBR and the top dielectric DBR combine to form a complete top DBR.