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. 04, 2003
Filed:
May. 01, 2000
Applicant:
Inventor:
Julian Bernard Donald Soole, Edison, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/12 ; G02B 6/34 ;
U.S. Cl.
CPC ...
G02B 6/12 ; G02B 6/34 ;
Abstract
The specification describes an optical integrated circuit for a wavelength division demultiplexer. The demultiplexer comprises an AWG filter comprising a waveguide grating array between multimoded coupler regions. Crosstalk in the optical signals from the demultiplexer is reduced by integrating a second AWG filter on each output waveguide. In an alternative embodiment the second filter is a generalized Mach-Zehnder (M-Z) interferometer filter employing multimode interference filter (MMI) coupler regions connected by a waveguide array.