The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2020
Filed:
Oct. 23, 2018
Philips Photonics Gmbh, Ulm, DE;
Philipp Henning Gerlach, Eindhoven, NL;
Roger King, Eindhoven, NL;
TRUMPF PHOTONIC COMPONENTS GMBH, Ulm, DE;
Abstract
The disclosure relates to a Vertical Cavity Surface Emitting Laser () comprising a first electrical contact (), a substrate (), a first Distributed Bragg Reflector (), an active layer (), a second Distributed Bragg Reflector () and a second electrical contact (). The Vertical Cavity Surface Emitting Laser comprises at least two current aperture layers () arranged below or above the active layer (), wherein each of the current aperture layers () comprises one AlGaAs-layer, wherein a first current aperture layer () of the at least two current aperture layers () is arranged nearer to the active layer () as a second current aperture layer () of the at least two current aperture layers (), wherein the first current aperture layer () comprises a first current aperture () with a bigger size as a second current aperture () of the second current aperture layer (). The disclosure also relates to a method of manufacturing such a VCSEL ().