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:
Mar. 19, 1996
Filed:
Sep. 09, 1994
Applicant:
Inventors:
Raymond A Cirelli, Hillsborough, NJ (US);
Charles H Henry, Skillman, NJ (US);
Edward J Laskowski, Scotch Plains, NJ (US);
Michele A Milbrodt, Macungie, PA (US);
Henry H Yaffe, Dunwoody, GA (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01L / ;
U.S. Cl.
CPC ...
385 37 ; 385 14 ; 385 27 ; 385130 ; 385131 ; 437 51 ;
Abstract
A waveguide Bragg reflector is made by forming periodic grooves in either the undercladding or the core, applying a high index coating on the grooved surface and selectively removing the coating from the horizontal surfaces while leaving the coating on the vertical surfaces. The waveguide is then completed.