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:
Aug. 13, 2002
Filed:
Aug. 06, 1999
David John DiGiovanni, Montclair, NJ (US);
Daryl Inniss, Alpharetta, GA (US);
Ralph Stephen Jameson, Allentown, PA (US);
Sandra Greenberg Kosinski, Murray Hill, NJ (US);
Abstract
The disclosed fiber Raman device comprises means for coupling pump radiation of a first wavelength &lgr; and a second wavelength &lgr; into a length of silica-based fiber, with &lgr; being different from &lgr; , and with both of &lgr; and &lgr; being less than an output radiation &lgr; of the fiber Raman device. The Raman device further comprises at least a first and a second wavelength-selective element disposed to provide one or more optical cavities for Raman shifting of light in the fiber. At least one of the optical cavities is selected such that at least one of &lgr; and &lgr; is off resonance. Exemplarily, the Raman device is a topologically linear or circular Raman laser or amplifier, and the wavelength selective element is a fiber Bragg grating or a WDM. The Raman device is advantageously used in an optical fiber communication system.