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. 19, 2009
Filed:
Oct. 11, 2006
Chien-hung Yeh, Jhudong Township, Hsinchu County, TW;
Sien Chi, Hsinchu, TW;
Chien-Hung Yeh, Jhudong Township, Hsinchu County, TW;
Sien Chi, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An optical amplifier is disclosed having a relatively high gain and low noise figure across the broadband wavelength range. In an exemplary embodiment, the optical amplifier comprises an optical fiber including a core doped with a fluorescent material, the optical amplifier having an associated first noise figure. The optical amplifier also comprises a semiconductor optical amplifier portion being optically coupled to the optical fiber, the semiconductor optical amplifier portion having an associated second noise figure, wherein the first noise figure is less than the second noise figure.