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:
Oct. 28, 2003
Filed:
Jul. 23, 2001
Applicant:
Inventors:
Martin David Brian Charlton, Southampton, GB;
Gregory Jason Parker, Brockenhurst, GB;
Assignee:
BTG International Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/04 ; H01L 2/100 ; H04J 1/402 ;
U.S. Cl.
CPC ...
G02B 6/04 ; H01L 2/100 ; H04J 1/402 ;
Abstract
An optical device includes a waveguide bounded by a region containing a photonic band gap the properties of which determined the transfer characteristic of the waveguide. Such a device may serve as a component of, for example a wavelength division multiplexer, a monochromatic laser or a chemical sensor. It may serve as an optical bus for an electronic component such as a microprocessor. These devices are particularly suitable for incorporation in optical and opto-electronic integrated circuits as they permit the fabrication of waveguides having right-angle bends with a radius of the order of 2 &mgr;m.