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:
Aug. 27, 2019
Filed:
Jun. 14, 2017
Mellanox Technologies, Ltd., Yokneam, IL;
Alexei Sirbu, Cugy, CH;
Vladimir Iakovlev, Ecublens, CH;
Yuri Berk, Kiryat Tivon, IL;
Itshak Kalifa, Ramat Gan, IL;
Elad Mentovich, Tel Aviv, IL;
Sylvie Rockman, Zichron Yaakov, IL;
Mellanox Technologies, Ltd., Yokneam, IL;
Abstract
A vertical-cavity surface-emitting laser (VSCEL) and method for producing a VCSEL are described, the VCSEL including an undercut active region. The active region of the VCSEL is undercut relative to current-spreading layers of the VCSEL, such that a width of a tunnel junction of the VCSEL overgrown by a current spreading layer is less than a width of an active region of the VCSEL, and a width of the active region of the VCSEL is less than a width of the overgrown current-spreading layer, such that the VCSEL including the undercut active region is configured to transmit data at speeds greater than 25 gigabits/second.