FIBER OPTIC ARTICLE

Title:

FIBER OPTIC ARTICLE

Document Type and Number:

WIPO Patent Application WO2006017802

Kind Code:

A3

Abstract:

An optical fiber comprising a core (120, 220, 320, 420, 520, 620, 720, 820) having at least one rare earth for providing light having a first wavelength responsive to the fiber being pumped by light having a second wavelength that is different than the first wavelength; an inner region (270, 370, 470, 570, 670, 770, 870) disposed about the core; a pump cladding (224, 324, 424, 524, 624, 724, 824) disposed about the inner region; a second cladding (128, 228, 328, 628, 728, 828) disposed about the pump cladding; wherein the index of refraction of the second cladding is less than that of the pump cladding, the index of refraction of the pump cladding is less than that of the inner region, and the index of refraction of the inner region is less than that of the core; and wherein the core comprises a V-number at the first wavelength of greater than 2.405 and wherein the core comprises a numerical aperture of less than 0.12.

Inventors:

FARRONI JULIA A (US)
MANYAM UPENDRA H (US)
JACOBSON NILS (US)
TANKALA KANISHKA (US)
CARTER ADRIAN (AU)

Application Number:

PCT/US2005/028032

Publication Date:

November 23, 2006

Filing Date:

August 05, 2005

Export Citation:

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Assignee:

NUFERN (US)
FARRONI JULIA A (US)
MANYAM UPENDRA H (US)
JACOBSON NILS (US)
TANKALA KANISHKA (US)
CARTER ADRIAN (AU)

International Classes:

G02B6/02; G02B6/00; H01S3/30; H04B10/12

Foreign References:

US6463201B2	2002-10-08
US20020154874A1	2002-10-24
US20040086245A1	2004-05-06
US20020030881A1	2002-03-14
US20050008313A1	2005-01-13

Other References: