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:
Aug. 21, 2001
Filed:
Apr. 30, 1999
Applicant:
Inventor:
Emma Jane Clarissa Dawnay, Wiltshire, GB;
Assignee:
Bookham Technology plc, Abingdon, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/26 ;
U.S. Cl.
CPC ...
G02B 6/26 ;
Abstract
The device comprises an upper silicon layer (,) including two optically connected rib waveguides (,) formed in the upper silicon layer (,); a pair of dissimilar materials (,) each positioned between the two waveguides (,); and an electrical circuit (,) through the pair of dissimilar materials (,), so that an electrical current can be passed through the dissimilar materials (,) in both forward and reverse directions, so as to simultaneously heat one waveguide and cool the other waveguide by virtue of the Peltier effect.