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:
Sep. 20, 2005
Filed:
Nov. 18, 2002
Applicants:
Harmeet Singh, Acton, MA (US);
Hamid R. Khazaei, Westford, MA (US);
Inventors:
Harmeet Singh, Acton, MA (US);
Hamid R. Khazaei, Westford, MA (US);
Assignee:
OpteVia Corporation, Acton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/34 ;
U.S. Cl.
CPC ...
Abstract
A polarization coupler includes a stress-inducing feature disposed to generate a stress-field in a substrate. First and second waveguides each have a coupling portion that pass through the stress-field. First and second periodic-structures are in optical communication with the coupling portions of the first and second waveguides.