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. 02, 2008
Filed:
Apr. 10, 2007
Russell A. Budd, North Salem, NY (US);
Punit Chiniwalla, Ann Arbor, MI (US);
Philip C. D. Hobbs, Briarcliff Manor, NY (US);
Frank R. Libsch, White Plains, NY (US);
Russell A. Budd, North Salem, NY (US);
Punit Chiniwalla, Ann Arbor, MI (US);
Philip C. D. Hobbs, Briarcliff Manor, NY (US);
Frank R. Libsch, White Plains, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An optical assembly includes a waveguide assembly and an optical coupling element. The waveguide assembly includes a core, a cladding portion, and, preferably, at least two waveguide core fiducials, the at least two waveguide core fiducials and the core being lithographically formed substantially simultaneously in a substantially coplanar layer. The core and the at least two waveguide core fiducials are formed in a predetermined relationship with the cladding portion. The optical coupling element (for example, a lens array or mechanical transfer (MT) ferrule), includes an optical element and, preferably, at least two alignment features associated with the optical element, the at least two alignment features being mated with the at least two waveguide core fiducials to accurately position the optical element with respect to the core in an X-Y plane. A method of alignment is also provided.