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:
Nov. 15, 2016
Filed:
Oct. 12, 2011
Applicant:
Hindrik Freerk Bulthuis, Apeldoorn, NL;
Inventor:
Hindrik Freerk Bulthuis, Apeldoorn, NL;
Assignee:
GEMFIRE CORPORATION, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
G02B 6/12016 (2013.01); G02B 6/12014 (2013.01); H04J 14/0282 (2013.01);
Abstract
Roughly described, an AWG has two or more inputs and multiple outputs. By selecting the angular spacing among the inputs, and by designing the different inputs to address different orders of the waveguide array, the device can be designed such that the inputs will carry frequency bands having any desired center frequency spacing and any desired same or different channel spacing. For example a dual input device can be designed such that one input carries C-band channels and the other input carries L-band channels, and both have channel spacings that match or substantially match the ITU grid.