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:
Jan. 18, 2005
Filed:
Mar. 29, 2001
Applicants:
Karsten Buse, Bonn, DE;
Demetri Psaltis, Pasadena, CA (US);
Inventors:
Karsten Buse, Bonn, DE;
Demetri Psaltis, Pasadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 532 ;
U.S. Cl.
CPC ...
Abstract
An optical add/drop filter is formed using a hologram which is tuned to a wavelength in an optical signal. The diffraction condition of the hologram may be varied to vary the in add or drop content.