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:
Mar. 04, 2008
Filed:
Feb. 28, 2007
George Edward Berkey, Pine City, NY (US);
Ming-jun LI, Horseheads, NY (US);
Shenping LI, Painted Post, NY (US);
Daniel Aloysius Nolan, Corning, NY (US);
George Edward Berkey, Pine City, NY (US);
Ming-Jun Li, Horseheads, NY (US);
Shenping Li, Painted Post, NY (US);
Daniel Aloysius Nolan, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
An optical-fiber-based light source that generates light via third-harmonic (TH) generation is disclosed. The light source includes a pump light source that provides pump light having a fundamental mode of wavelength λ. The light source also includes an optical fiber optically coupled to the pump light source. The optical fiber's core refractive index profile has (i) a central region with a refractive index value Δ, (ii) a first annular region immediately surrounding the central region and having a refractive index value Δ, and (iii) a second annular region immediately surrounding the first annular region and having a refractive index value Δ. The optical fiber satisfies the conditions Δ<Δand Δ<Δ, and max{Δ,Δ}−Δ>1.2%. The pump light produces TH-generated light having a higher-order mode of wavelength λ=(1/3)λand that is outputted at the optical fiber output end. The pump light fundamental mode overlaps the TH-generated-light higher order mode over the length of the optical fiber to provide a conversion efficiency of 1% or greater.