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:
May. 18, 1993
Filed:
Apr. 10, 1992
Applicant:
Inventors:
Renen Adar, Westfield, NJ (US);
Corrado Dragone, Little Silver, NJ (US);
Charles H Henry, Skillman, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H04J / ;
U.S. Cl.
CPC ...
385129 ; 385130 ; 385 32 ; 385 33 ; 385 43 ; 359115 ; 359127 ; 359131 ;
Abstract
An integrated optic device useful as a planar lens or a low order array multiplexer comprises a pair of optical couplers and an array of plural waveguides extending between the couplers in an 'S' configuration to provide closely spaced optical path lengths. An 'S' configuration provides equal path lengths for an optical lens. Incremental lengths added to the 'S' in the region between curve reversal can provide small path length increments for a low order array multiplexer or demultiplexer.