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:
Apr. 26, 2016
Filed:
Apr. 25, 2012
Kazi S. Abedin, Basking Ridge, NJ (US);
Tristan Kremp, Somerset, NJ (US);
Jeffrey W. Nicholson, Morris Town, NJ (US);
Jerome C. Porque, Readington, NJ (US);
Paul S. Westbrook, Bridgewater, NJ (US);
Kazi S. Abedin, Basking Ridge, NJ (US);
Tristan Kremp, Somerset, NJ (US);
Jeffrey W. Nicholson, Morris Town, NJ (US);
Jerome C. Porque, Readington, NJ (US);
Paul S. Westbrook, Bridgewater, NJ (US);
OFS FITEL, LLC, Norcross, GA (US);
Abstract
A Raman distributed feedback (DFB) fiber laser is disclosed. It includes a pump source and a Raman gain fiber of a length smaller than 20 cm containing a distributed feedback (DFB) grating with a discrete phase structure located within no more than 10% off the center of the grating and wherein the Raman DFB fiber laser generates a laser signal with an optical spectrum, which has an optical bandwidth at half maximum optical intensity of less than 1 gigahertz (GHz) (wherein a maximum intensity frequency is different from the frequency of the pump laser). The Raman laser includes compensation for the nonlinear phase change due to Kerr effect and thermal effect resulting from absorption of the optical field, thus enhancing the conversion efficiency.