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. 06, 2004
Filed:
Aug. 11, 2000
Applicant:
Inventors:
Assignee:
The University of Southampton, Southampton, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 ;
U.S. Cl.
CPC ...
G02B 6/02 ;
Abstract
A method of fabricating a band-processing optical fibre filter having a center wavelength &lgr; ′, the method comprises (i) radius-reducing a mismatched multi-core optical fibre having a core phase matching wavelength (before radius reduction) of &lgr; and a radius (before radius reduction) of a , to a reduced radius Ra , where R=&lgr; ′/&lgr; ; and (ii) providing light input and output connections to a section of the radius-reduced multi-core fibre so that input light is launched into one of the cores of the multi-core fibre section and output light emerges from one of the cores of the multi-core fibre section.