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. 09, 2007
Filed:
Jul. 16, 2003
Greg Parker, Hampshire, GB;
Martin Charlton, Hampshire, GB;
Majd Zoorob, Hampshire, GB;
Mesophotonics Ltd., Southampton, GB;
Abstract
A waveguide structure according to the invention comprises a core layer (), having a refractive index n, and an array of rods () in the core layer having a refractive index n. The refractive indices satisfy the inequality: n>n. In a planar waveguide structure buffer () and cladding () layers are included, having a refractive index nand nrespectively. The refractive indices then satisfy the inequality: n>n>nand n. This condition provides greater vertical confinement of the E-field of an optical signal passing through the waveguide. Furthermore, it allows waveguides to be formed of a glassy material having a similar refractive index and core dimensions to that of a fiber. A high refractive index contrast within the photonic crystal region is used while totally eliminating the need for mode conversion to launch light in and out of the waveguide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile