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. 25, 2020
Filed:
Feb. 20, 2019
Qorvo Us, Inc., Greensboro, NC (US);
Oleh Krutko, Colleyville, TX (US);
Craig Francis Steinbeiser, Allen, TX (US);
Qorvo US, Inc., Greensboro, NC (US);
Abstract
The present disclosure relates to a monolithic externally modulated laser (EML), which includes a substrate, a laser element, and an electro-absorption modulator (EAM). Both the laser element and the EAM reside over the substrate. The laser element includes a laser bottom electrode over the substrate, a laser core component over the laser bottom electrode, and a laser top electrode over the laser core component. The EAM includes a modulator bottom electrode over the substrate, a modulator core component over the modulator bottom electrode, and a modulator top electrode over the modulator core component. Herein, at least portions of the substrate, which are directly under the laser bottom electrode and directly under the modulator bottom electrode, are electrically non-conductive. The laser top electrode is isolated from the modulator top electrode, and the laser bottom electrode is isolated from the modulator bottom electrode.