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:
Jun. 03, 2003
Filed:
Jan. 18, 2000
Daniel Hofstetter, Neuchatel, CH;
Thomas L. Paoli, Los Altos, CA (US);
Linda T. Romano, Sunnyvale, CA (US);
Decai Sun, Sunnyvale, CA (US);
David P. Bour, Cupertino, CA (US);
Michael A. Kneissl, Mountain View, CA (US);
Chris G. Van de Walle, Sunnyvale, CA (US);
Noble M. Johnson, Menlo Park, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A distributed feedback structure includes a substrate material. An active layer has an alloy including at least one of aluminum, gallium, indium, and nitrogen. A first cladding, having an alloy including at least one of the aluminum, the gallium, the indium, and the nitrogen, is on a first side of the active layer. A second cladding, having an alloy including at least one of the aluminum, the gallium, the indium, and the nitrogen, is on a second side of the active layer. Periodic variations of refractive indices in at least one of the first and second claddings provide a distributed optical feedback.