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. 27, 2005
Filed:
Jul. 01, 2002
Ansheng Liu, Cupertino, CA (US);
Shlomo Ovadia, San Jose, CA (US);
Dean A. Samara-rubio, San Jose, CA (US);
Michael T. Morse, San Jose, CA (US);
Ansheng Liu, Cupertino, CA (US);
Shlomo Ovadia, San Jose, CA (US);
Dean A. Samara-Rubio, San Jose, CA (US);
Michael T. Morse, San Jose, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A waveguide Bragg grating (WBG) is apodized by varying the duty cycle of selected grating periods while fixing the pitch of the grating periods. In one embodiment, the WBG is implemented in a silicon substrate using polysilicon filled trenches of varying width while keeping the grating periods' pitch constant. The polysilicon trenches are formed so that if the width of one trench is increased compared to an adjacent grating period, the trench width in the other adjacent grating period (if present) is decreased.