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:
Jan. 17, 2017
Filed:
Oct. 09, 2015
Applicant:
Lumentum Operations Llc, Milpitas, CA (US);
Inventors:
Peter David Roorda, Ottawa, CA;
Sheldon McLaughlin, Ottawa, CA;
Assignee:
Lumentum Operations LLC, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04Q 11/00 (2006.01);
U.S. Cl.
CPC ...
H04J 14/0212 (2013.01); H04Q 11/0005 (2013.01); H04Q 2011/0016 (2013.01); H04Q 2011/0058 (2013.01); H04Q 2011/0073 (2013.01);
Abstract
A colorless, directionless ROADM includes a pair of contentioned add and drop wavelength-selective optical switches, an input wavelength-selective optical switch having one input port, and an output wavelength-selective optical switch having one output port. Unintended input-to-output port couplings, which appear in the 'contentioned' add and drop switches, can be mitigated by the input and output wavelength-selective optical switches carrying the through traffic.