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:
Jun. 12, 2012
Filed:
Mar. 02, 2011
Pierpaolo Boffi, Voghera, IT;
Lucia Marazzi, Pavia, IT;
Paolo Martelli, Milan, IT;
Mario Martinelli, San Donato Milanese, IT;
Aldo Righetti, Milan, IT;
Rocco Siano, Milan, IT;
Pierpaolo Boffi, Voghera, IT;
Lucia Marazzi, Pavia, IT;
Paolo Martelli, Milan, IT;
Mario Martinelli, San Donato Milanese, IT;
Aldo Righetti, Milan, IT;
Rocco Siano, Milan, IT;
Google Inc., Mountain View, CA (US);
Abstract
A device and method for stabilizing the state of polarization of polarization multiplexed optical radiation including an identified channel is disclosed. The device and method comprise providing to the polarization multiplexed optical radiation a first controllable polarization transformation to generate a first transformed optical radiation; detecting a first state of polarization of a first polarized portion with respect to a first polarization parameter; controlling the first controllable polarization transformation so that the first polarization parameter has a predetermined value independent of a polarization state of the polarization multiplexed optical radiation; providing to the first transformed optical radiation a second controllable polarization transformation to generate a second transformed optical radiation; detecting a second state of polarization of a second polarized portion; and controlling the second controllable polarization transformation so that the second state of polarization has a predefined value.