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:
Jul. 31, 2012
Filed:
Sep. 09, 2009
Applicants:
Paul Colbourne, Ottawa, CA;
Sheldon Mclaughlin, Ottawa, CA;
Stephen Robert DE Hennin, Ottawa, CA;
Pierre D. Wall, Ottawa, CA;
Inventors:
Paul Colbourne, Ottawa, CA;
Sheldon McLaughlin, Ottawa, CA;
Stephen Robert de Hennin, Ottawa, CA;
Pierre D. Wall, Ottawa, CA;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 14/00 (2006.01); G02B 6/35 (2006.01); G02B 5/08 (2006.01); H04B 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wavelength selective switch (WSS) based on an array of MEMS mirrors tiltable in 1-dimension about only one axis exhibits 'hitting' or unwanted port connections during switching. Two WSS's can be cascaded to create M×N switching functionality in a hitless manner by the inclusion of block ports at specified positions in one or both of the WSS's. Greater use efficiency of ports can be achieved if quasi-hitless performance is acceptable.