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:
Nov. 22, 2011
Filed:
Mar. 11, 2008
Isaac Shpantzer, Bethesda, MD (US);
Alexander Genusov, Brookline, MA (US);
Yehouda Meiman, Rishon Letzion, IL;
Jacob Khurgin, Baltimore, MD (US);
Isaac Shpantzer, Bethesda, MD (US);
Alexander Genusov, Brookline, MA (US);
Yehouda Meiman, Rishon Letzion, IL;
Jacob Khurgin, Baltimore, MD (US);
CeLight, Inc., Silver Spring, MD (US);
Abstract
The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.