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:
Dec. 21, 2004
Filed:
Feb. 13, 2001
Applicant:
Inventors:
Peter G R Smith, Romsey, GB;
Graeme W Ross, Aberdeen, GB;
David C Hanna, Southampton, GB;
David P Shepherd, Southampton, GB;
Corin B E Gawith, Romford, GB;
Assignee:
QinetiQ Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 ; G02B 6/10 ;
U.S. Cl.
CPC ...
G02B 6/00 ; G02B 6/10 ;
Abstract
An optical waveguide with at least a guiding lamina ( ) of optical material bonded by direct interfacial bonding to a superstructure lamina ( ) of optical material, in which regions of the guiding lamina have modified optical properties so as to define a light guiding path along the guiding lamina. In a particular example, a periodically poled LiNbO planar waveguide is buried in LiTaO by direct interfacial bonding and precision polishing techniques and used in an optical frequency doubling system.