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. 19, 2005
Filed:
Sep. 17, 2002
Applicants:
Christopher Anthony Park, Stowmarket, GB;
Richard Mark Ash, Bury St Edmunds, GB;
Andrew Thomas Harker, Ipswich, GB;
Paul Marshall Charles, Ipswich, GB;
Inventors:
Christopher Anthony Park, Stowmarket, GB;
Richard Mark Ash, Bury St Edmunds, GB;
Andrew Thomas Harker, Ipswich, GB;
Paul Marshall Charles, Ipswich, GB;
Assignee:
Agilent Technologies, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/26 ;
U.S. Cl.
CPC ...
Abstract
An optical device having a photonic band gap element operative such that the refractive index can be varied through application of an electrical signal. This enables the manufacture of tuneable lasers, optical add/drop multiplexers and tuneable optical wavelength converters.