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:
Apr. 18, 2017
Filed:
Jul. 01, 2013
Koninklijke Philips N.v., Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The present invention relates to a laser device being formed of at least one VCSEL () with intracavity contacts. The VCSEL comprises a layer structure () with an active region () between a first DBR () and a second DBR (), a first current-injection layer () of a first conductivity type between the first DBR () and the active region (), and a second current-injection layer () of a second conductivity type between the second DBR () and the active region (). The first and second current-injection layers () are in contact with a first and a second metallic contact (), respectively. The first and/or second DBR () are formed of alternating Aluminum oxide and Al(x)Ga(1−x)As containing layers. The proposed design of this VCSEL allows an increased efficiency and lower production costs of such a laser since the top and bottom DBRs may be formed of a considerable reduced thickness.