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. 09, 2009
Filed:
Oct. 08, 2004
Applicant:
Hoki Kwon, Plymouth, MN (US);
Inventor:
Hoki Kwon, Plymouth, MN (US);
Assignee:
Finisar Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0304 (2006.01); H01L 31/0352 (2006.01);
U.S. Cl.
CPC ...
Abstract
Distributed Bragg reflector (DBR) with reduced DX centers. A DBR includes an AlAs region. The AlAs region includes essentially homogeneous AlAs. The DBR further includes a A1GaAs region. The AlGaAs region includes alternating thin layers of AlAs and GaAs. The alternating thin layers of AlAs and GaAs are arranged such the the AlGaAs region appears as a layer of A1GaAs with appropriate concentrations of Al and Ga.