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:
Jan. 15, 2002
Filed:
Aug. 04, 2000
Farshid Farjady, Corning, NY (US);
Michael Charles Parker, Sutton, GB;
Abstract
An arrayed wavelength grating device has a series of waveguiding channels ( ) interconnecting two free space regions ( ) across which light inputting and outputting the device passes. There are differences in optical path length between any two of said channels ( ) lying adjacent to one other in said series, which differences are defined by respective optical path length increments. The optical path length progression across said channels ( ) is non-linear, not being defined by any one value of the path length increments, nor by a plural number of values of the path length increments each defining a linear optical path length progression of a subset of at least three of said channels ( ).