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:
Jan. 27, 2009
Filed:
May. 03, 2005
Martin Seifert, West Simsbury, CT (US);
Upendra H. Manyam, Weatogue, CT (US);
Mansoor Alam, Rocky Hill, CT (US);
Kanishka Tankala, South Windsor, CT (US);
Jaroslaw Abramczyk, New Britain, CT (US);
Douglas Guertin, Charlton, MA (US);
Nils Jacobson, North Granby, CT (US);
Martin Seifert, West Simsbury, CT (US);
Upendra H. Manyam, Weatogue, CT (US);
Mansoor Alam, Rocky Hill, CT (US);
Kanishka Tankala, South Windsor, CT (US);
Jaroslaw Abramczyk, New Britain, CT (US);
Douglas Guertin, Charlton, MA (US);
Nils Jacobson, North Granby, CT (US);
Nufern, East Granby, CT (US);
Abstract
An optical fiber comprising a multimode glass core having a diameter of at least 250 microns and an index of refraction and a polymer cladding having a thickness and contactingly surrounding a glass portion of the fiber so as to define an interface between the glass portion and the polymer cladding. The polymer cladding can have a first index of refraction that is less than the index of refraction. The fiber can comprise a density of less than 0.25 non-conforming regions having a diameter of 25 microns or greater per millimeter of length along the fiber, where each of the non-conforming regions is a region visible to the human eye under an optical microscope and having at least a portion thereof within a selected distance of the interface. The selected distance can be less than or equal to the thickness of the polymer cladding. The optical microscope can have a total magnification of about 200. The polymer cladding can be applied to at least a part of the optical fiber in at least a class 1000 environment. Methods of using optical fibers, including receiving with an optical fiber optical energy from a source and guiding the optical energy with the optical fiber, wherein the optical energy comprises at least one of 1) pulses each comprising a peak power of at least 10 kW, 2) an average power of at least 50 Watts, or 3) an average power density of at least 2.9 kW/cm.