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:
Oct. 24, 2006
Filed:
Dec. 20, 2002
Applicants:
Peter J. S. Heim, Washington, DC (US);
Mario Dagenais, Chevy Chase, MD (US);
Simarjeet Saini, Columbia, MD (US);
Xun LI, Burlington, CA;
Inventors:
Peter J. S. Heim, Washington, DC (US);
Mario Dagenais, Chevy Chase, MD (US);
Simarjeet Saini, Columbia, MD (US);
Xun Li, Burlington, CA;
Assignee:
Quantum Photonics, Inc., Jessup, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor optical amplifier (SOA) has an overall gain that is substantially polarization independent, i.e., less than 1 dB difference between transverse electric (TE) and transverse magnetic (TM) gain. The SOA includes gain and polarization rotation functions integrated onto a single substrate. According to one exemplary embodiment, a passive polarization rotation section is disposed between two active gain sections.