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:
Nov. 03, 2020
Filed:
Feb. 06, 2019
Applicant:
Lumentum Operations, Llc, Milpitas, CA (US);
Inventors:
Pengfei Qiao, Albany, CA (US);
Chien-Yao Lu, Fremont, CA (US);
Assignee:
Lumentum Operations LLC, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/183 (2006.01); H01S 5/024 (2006.01); H01S 5/20 (2006.01);
U.S. Cl.
CPC ...
H01S 5/18355 (2013.01); H01S 5/18341 (2013.01); H01S 5/18386 (2013.01); H01S 5/02469 (2013.01); H01S 5/18308 (2013.01); H01S 5/18311 (2013.01); H01S 5/18319 (2013.01); H01S 5/18361 (2013.01); H01S 5/2063 (2013.01);
Abstract
A vertical-cavity surface-emitting laser (VCSEL) may include at least one layer forming a grating structure with a selected period, depth, and fill factor, wherein the period, the depth, and the fill factor of the grating structure are configured to achieve greater than a threshold level of efficiency for the VCSEL, less than a threshold current increase caused by power loss from higher order diffraction associated with the grating structure, and greater than a threshold polarization selectivity at an emission wavelength of the VCSEL.