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:
Feb. 08, 2005
Filed:
Dec. 07, 2000
Phillip St. John Russell, Bath, GB;
Timothy Adam Birks, Bath, GB;
Jonathan Cave Knight, Bath, GB;
Brian Joseph Mangan, Bath, GB;
Phillip St. John Russell, Bath, GB;
Timothy Adam Birks, Bath, GB;
Jonathan Cave Knight, Bath, GB;
Brian Joseph Mangan, Bath, GB;
Crystal Fibre A/C, Birkerød, DK;
Abstract
A photonic crystal fiber comprising: a core () having a refractive index; and a cladding region () at least substantially surrounding the core () and comprising a bulk material having a second refractive index that is higher that the first refractive index, the bulk material containing an arrangement of elongate, longitudinal holes that comprise hole material of a third refractive index that is lower than the first refractive index; such that an electromagnetic mode guided in the core () has an evanescent wave that becomes more closely confined to the vicinity of the core () as the wavelength of the electromagnetic mode is increased over a first range of wavelengths.