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:
Sep. 12, 2006
Filed:
Sep. 12, 2002
Applicants:
Andrew Carter, Blisworth, GB;
Douglas Reid, Rugby, GB;
Inventors:
Andrew Carter, Blisworth, GB;
Douglas Reid, Rugby, GB;
Assignee:
Bookham Technology, plc, Abingdon, GB;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); H01S 5/00 (2006.01); H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tuneable laser includes a gain section bounded at one end by a first reflector adapted to produce a comb of reflective peaks and on the other end by a second reflector in the form of a plurality of discrete grating units each capable of reflecting at one of the peaks of the comb, and each grating unit having at least two independently actuable electrodes, which when actuated independently one from the other is capable of reducing the reflectivity of the grating unit and in which at least two of the grating units have different pitches.