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:
Jul. 09, 2002
Applicant:
Ian B. Betty, Ottawa, CA;
Inventor:
Ian B. Betty, Ottawa, CA;
Assignee:
Bookham Technology PLC, Abingdon, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F001/225 ; G02B006/10 ;
U.S. Cl.
CPC ...
Abstract
A current tuned optical attenuator includes a Mach-Zehnder interferometer that relies on the creation of free carriers to create a phase difference in an optical signals along two waveguide arms.