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:
Aug. 24, 2004
Filed:
Jan. 22, 2002
Corrado P. Dragone, Little Silver, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
An optical imaging arrangement includes a wavelength router having ( ) N waveguides connected to different locations of the input curved boundary of the router, ( ) a grating that forms multiple paths through the router and which transforms a particular wavelength applied to one of the N waveguides into N interleaved sets of equally spaced output images corresponding to the different orders of the grating ( ) an output curve illuminated by the various images and ( ) N interleaved sets of reflective elements placed along the output curve with properly chosen periodicity, such that all significant orders of each set of images are reflected back through the arrangement, so as to effectively produce a single input reflection in only one of the N waveguides of the arrangement, and the particular waveguide is determined by the phase shifts produced by the sets of reflective elements.