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. 27, 2009
Filed:
Oct. 31, 2003
Applicants:
Michael Schmidt, Stuttgart, DE;
Eugen Lach, Marbach, DE;
Inventors:
Michael Schmidt, Stuttgart, DE;
Eugen Lach, Marbach, DE;
Assignee:
Alcatel, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A receiver for an OTDM/PDM pulse train () in which the pulses () have alternating polarizations (PP) has a polarization insensitive optical switch () for isolating optical pulses (') within the pulse train (), and a polarization selective element () for separating from the isolated pulses (′) at least one component that has a single polarization. This allows to considerable relax the constraints posed on the switch since components in the isolated pulses that result from interchannel interference can, at least to a large extent, be eliminated by the subsequent polarization selective element ().