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. 28, 2009
Filed:
Dec. 15, 2005
Applicants:
Christopher L. Chua, San Jose, CA (US);
Michael A. Kneissl, Berlin, DE;
Noble M. Johnson, Menlo Park, CA (US);
Peter Kiesel, Palo Alto, CA (US);
Inventors:
Christopher L. Chua, San Jose, CA (US);
Michael A. Kneissl, Berlin, DE;
Noble M. Johnson, Menlo Park, CA (US);
Peter Kiesel, Palo Alto, CA (US);
Assignee:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and structure for laterally index guiding is described. In the method, lateral areas around the a semiconductor device active region are exposed to hydrogen. The hydrogen adjusts the index of refraction surrounding the laser active region helping to confine both the electrical carriers and the generated light to the laser active region.