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:
Oct. 29, 2019
Filed:
Apr. 04, 2018
Applicant:
Caliopa N.v., Zwijnaarde, BE;
Inventor:
Tom Collins, Munich, DE;
Assignee:
CALIOPA N.V., Zwijnaarde, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/12 (2006.01); G02B 6/122 (2006.01);
U.S. Cl.
CPC ...
G02B 6/26 (2013.01); G02B 6/12002 (2013.01); G02B 6/12004 (2013.01); G02B 6/1228 (2013.01); G02B 6/1223 (2013.01);
Abstract
A waveguide structure for optical coupling is provided. The waveguide structure includes a first waveguide embedded in a cladding of a lower refractive index than the first waveguide, a second waveguide of a higher refractive index than the cladding, and an intermediate waveguide. The first waveguide and the second waveguide are physically arranged at the same side of the intermediate waveguide to establish an optical coupling between the first waveguide and the second waveguide through the intermediate waveguide. The first waveguide material has a refractive index value smaller than or equal to 3.