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:
May. 28, 2012
Filed:
Jan. 17, 2011
Simarjeet S. Saini, Columbia Square, MD (US);
Jerry L. Bowser, Reisterstown, MD (US);
Vincent K. Luciani, Mount Airy, MD (US);
Peter J. S. Heim, Washington, DC (US);
Mario Dagenais, Chevy Chase, MD (US);
Ryan Enck, Columbia, MD (US);
Simarjeet S. Saini, Columbia Square, MD (US);
Jerry L. Bowser, Reisterstown, MD (US);
Vincent K. Luciani, Mount Airy, MD (US);
Peter J. S. Heim, Washington, DC (US);
Mario Dagenais, Chevy Chase, MD (US);
Ryan Enck, Columbia, MD (US);
Thorlabs Quantum Electronics, Inc., Newton, NJ (US);
Abstract
A semiconductor optical amplifier (SOA) with efficient current injection is described. Injection current density is controlled to be higher in some areas and lower in others to provide, e.g., improved saturation power and/or noise figure. Controlled injection current can be accomplished by varying the resistivity of the current injection electrode. This, in turn, can be accomplished by patterning openings in the dielectric layer above the current injection metallization in a manner which varies the series resistance along the length of the device.