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:
Oct. 30, 2007
Filed:
Apr. 29, 2004
Richard L. Davis, Redondo Beach, CA (US);
James G. Ho, Los Angeles, CA (US);
Akhil R. Shah, Los Angeles, CA (US);
Thomas J. Jung, Rolling Hills Estates, CA (US);
Terrance T. Lam, Montebello, CA (US);
Richard L. Davis, Redondo Beach, CA (US);
James G. Ho, Los Angeles, CA (US);
Akhil R. Shah, Los Angeles, CA (US);
Thomas J. Jung, Rolling Hills Estates, CA (US);
Terrance T. Lam, Montebello, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
An optical channel waveguide having a reflection grating and a related method for its fabrication. The grating is apodized to provide a desired reflection or transmission spectral characteristic, by varying the grating width along the length of the grating in the direction of light propagation. The grating has multiple parallel elements extending across the waveguide channel width, and apodization is effected by appropriate selection of the width of each element relative to the width of the channel, without varying the grating duty cycle or other parameters.