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. 22, 2009
Filed:
May. 23, 2008
Applicants:
Christophe Moser, Pasadena, CA (US);
Frank Havermeyer, Arcadia, CA (US);
Lawrence Pokwah Ho, Arcadia, CA (US);
Inventors:
Christophe Moser, Pasadena, CA (US);
Frank Havermeyer, Arcadia, CA (US);
Lawrence Pokwah Ho, Arcadia, CA (US);
Assignee:
Ondax, Inc., Monrovia, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is presented for shaping the spectral response of volume holographic grating elements by applying controlled thermal energy. The methods allow generating continuous or discontinuous grating periods from a fixed grating period. The methods are applicable to optical feedback into optical sources such as light emitting diodes, lasers and other general optical filtering applications.