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:
Jun. 06, 2023
Filed:
Oct. 27, 2020
Applicant:
Poet Technologies, Inc., Allentown, PA (US);
Inventor:
Suresh Venkatesan, Los Gatos, CA (US);
Assignee:
POET Technologies, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/10 (2021.01); H01S 5/026 (2006.01); G02B 6/42 (2006.01); H01S 5/22 (2006.01); H01S 5/34 (2006.01);
U.S. Cl.
CPC ...
H01S 5/1014 (2013.01); G02B 6/4201 (2013.01); H01S 5/026 (2013.01); H01S 5/22 (2013.01); H01S 5/34 (2013.01);
Abstract
The invention described herein pertains to the structure and formation of an optical device that includes a planar laser and a waveguide. The planar laser has a large lateral QW-containing layer and a tapered section in a transition portion of the device structure that enable low diode leakage currents and facilitate transition of the optical signal from the laser to a transition waveguide, and in some embodiments, to a dilute waveguide.