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. 25, 2020
Filed:
Dec. 22, 2017
Applicant:
Acacia Communications, Inc., Maynard, MA (US);
Inventors:
Assignee:
Acacia Communications, Inc., Maynard, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/30 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/305 (2013.01);
Abstract
Cantilevered waveguides suspended above an air cavity in an underlying substrate are described. The waveguide is formed by patterning a waveguide layer in some embodiments, and the air cavity is formed by etching the substrate beneath the waveguide. The topside of the air cavity may be sealed by filling the openings used to etch the cavity with a sealant, such as optical epoxy. In some embodiments, the waveguide is a facet coupler, positioned at a chip facet.