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:
May. 18, 2004
Filed:
Jun. 12, 2002
Applicant:
Inventor:
Graham Town, Bexley, AU;
Assignee:
The University of Sydney, New South Wales, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/20 ;
U.S. Cl.
CPC ...
G02B 6/20 ;
Abstract
A method of forming a holey waveguide, the method comprising the steps of forming a guiding region of a preform, forming a cladding region of the preform, wherein at least a portion of the cladding region of the preform is formed from a plurality of cladding tubes of at least two different diameters, choosing at least one of the diameters of the cladding tubes in a manner such as to reduce a total number of cladding tubes required to build up said portion of the cladding region when compared with utilising cladding tubes of the same diameter for said portion, and drawing the waveguide from the preform.