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:
Feb. 11, 2025
Filed:
Jun. 26, 2023
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 ...
H04B 10/00 (2013.01); G02B 6/42 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4234 (2013.01); G02B 6/4203 (2013.01); G02B 6/423 (2013.01); G02B 6/4238 (2013.01);
Abstract
Alignment aid structures and the method of formation of these structures on an interposer comprised of a planar waveguide layer and a base structure, facilitate the alignment of the optical axes of optical and optoelectrical devices formed from and mounted to the interposer. Alignment aids formed from a common hard mask on the planar waveguide layer of the interposer structure include vertical and lateral alignment structures and fiducials. Optical losses for signals propagating in interposer-based photonic integrated circuits are reduced with effective alignment structures and methods.