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. 01, 2021
Filed:
Nov. 29, 2016
Applicant:
Lasertel Inc., Tucson, AZ (US);
Inventors:
Devin Earl Crawford, Holzkirchen, DE;
Prabhu Thiagarajan, Tucson, AZ (US);
Mark McElhinney, Marana, AZ (US);
Assignee:
LEONARDO ELECTRONICS US INC., Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/02253 (2021.01); H01S 5/40 (2006.01); H01S 5/02251 (2021.01); H01S 5/10 (2021.01); H01S 5/34 (2006.01); H01S 5/32 (2006.01); H01S 5/20 (2006.01); H01S 5/22 (2006.01); H01S 5/30 (2006.01); H01S 5/065 (2006.01);
U.S. Cl.
CPC ...
H01S 5/02253 (2021.01); H01S 5/02251 (2021.01); H01S 5/1028 (2013.01); H01S 5/305 (2013.01); H01S 5/3095 (2013.01); H01S 5/34 (2013.01); H01S 5/4043 (2013.01); H01S 5/0655 (2013.01); H01S 5/2063 (2013.01); H01S 5/22 (2013.01); H01S 5/2214 (2013.01); H01S 5/3211 (2013.01);
Abstract
A laser diode apparatus has a first waveguide layer including a gain region connected in series with a second waveguide layer with a second gain region. A tunnel junction is positioned between the first and second guide layers. A single collimator is positioned in an output path of laser beams emitted from the first and second waveguide layers. The optical beam from the single collimator may be coupled into an optical fiber.