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:
May. 16, 2006
Filed:
Nov. 12, 2002
Applicants:
Reinhold Noe, Paderborn, DE;
David Sandel, Padeborn, DE;
Inventors:
Reinhold Noe, Paderborn, DE;
David Sandel, Padeborn, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/03 (2006.01); G02F 1/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polarization scrambler and associated method for polarization scrambling are provided, wherein light is passed through a retarder whose eigen modes and delay vary with time and which is driven with alternating signals at two harmonic frequencies. One exemplary embodiment with an electrooptical wave plate operates with a horizontal or vertical input polarization and supplies output polarizations which vary with time and have uncorrelated normalized Stokes parameters. The polarization scrambler which is produced can be used in devices for detection of polarization mode dispersion.