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:
Jul. 08, 2003
Filed:
Dec. 28, 2001
Applicant:
Inventor:
Karim Tatah, Winchester, MA (US);
Assignee:
Schott Optovance, Inc., Southbridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 ;
U.S. Cl.
CPC ...
G02B 6/42 ;
Abstract
A de-multiplexing system for optical signals including an optical fiber attached to an optical fiber taper is provided. Optical signals are transmitted through the optical fiber to the optical fiber taper. An etched diffraction grating located at the end of the optical fiber taper de-multiplexes optical signals. Bi-directional de-multiplexing can be accomplished by providing optical fiber tapers with etched diffraction gratings at both ends of the optical transmission fiber. A GRIN lens can be provided for focusing the de-multiplexed signals onto specific optical detectors.