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:
Nov. 19, 2002
Filed:
Nov. 30, 1999
Jaymin Amin, Corning, NY (US);
David L. Weidman, Horseheads, NY (US);
Laura A. Weller-Brophy, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A wavelength division demultiplexer includes a channel dropping component for receiving optical signals transmitted through a plurality of optical channels, defined by successively different light wavelength bands at intervals ranging between a first channel having the lowest wavelength band to a last channel having the highest wavelength band. The channel dropping component separates at least one channel having a wavelength band intermediate the lowest wavelength band and the highest wavelength band. The demultiplexer further includes an edge filter for separating optical signals received from the channel dropping component that have wavelengths below the intermediate wavelength band from optical signals having wavelengths above the intermediate wavelength band. The separated optical signals are transmitted from the edge filter in two different optical paths. The demultiplexer further includes a channel separator for separating optical signals transmitted in at least one of the optical paths from one another.