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:
Apr. 19, 2005
Filed:
Apr. 14, 2003
Applicants:
Barthelemy Fondeur, Mountain View, CA (US);
Anca Sala, Sunnyvale, CA (US);
Inventors:
Barthelemy Fondeur, Mountain View, CA (US);
Anca Sala, Sunnyvale, CA (US);
Assignee:
JDS Uniphase Corporation, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B006/34 ;
U.S. Cl.
CPC ...
Abstract
A flat-top arrayed waveguide grating with a Hyper-Gaussian distribution function and a modified sinc design exhibits a very low chromatic dispersion, low loss and requires a relatively small number of waveguides. Controlled loss is introduced into certain waveguides of the array by creating gaps (unguided regions) between the waveguides to produce a desired predetermined amplitude distribution. The gaps are preferably arranged in the middle of the array.