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:
Aug. 16, 2005
Filed:
Jan. 13, 2004
Applicants:
Christi K. Madsen, South Plainfield, NJ (US);
Mahmoud Rasras, New Providence, NJ (US);
Inventors:
Christi K. Madsen, South Plainfield, NJ (US);
Mahmoud Rasras, New Providence, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/30 ;
U.S. Cl.
CPC ...
Abstract
In accordance with the invention, an optical fiber is coupled to a planar waveguide through 1) a series of planar waveguide segments of enlarged cross section and 2) a segment of vertically tapered cross section. The combination of spaced segments and tapered segments provide efficient coupling over a much shorter length than required for conventional adiabatic coupling.