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. 05, 2009
Filed:
Mar. 15, 2004
Christopher R. Doerr, Middletown, NJ (US);
Christophe J. Dorrer, Matawan, NJ (US);
Daniel C. Kilper, Rumson, NJ (US);
Michael G. Raymer, Eugene, OR (US);
Howard R. Stuart, East Windsor, NJ (US);
Peter J. Winzer, Tinton Falls, NJ (US);
Christopher R. Doerr, Middletown, NJ (US);
Christophe J. Dorrer, Matawan, NJ (US);
Daniel C. Kilper, Rumson, NJ (US);
Michael G. Raymer, Eugene, OR (US);
Howard R. Stuart, East Windsor, NJ (US);
Peter J. Winzer, Tinton Falls, NJ (US);
State of Oregon Acting By and Through the State Board of Higher Education on Behalf of The University of Oregon, Eugene, OR (US);
Lucent Technologies, Murray Hill, NJ (US);
Abstract
An optical data signal can be sampled by linearly combining the optical data signal with optical sampling pulses, and delivering the combination to first and second balanced detectors. The optical data signal and the optical sampling pulse are configured to have a first phase difference at the first balanced detector and a second phase difference at the second balanced detector. Typically, a difference between the first phase difference and the second phase difference is configured to be about 90 degrees. In-phase and quadrature balanced detector outputs can be combined as a sum of squares to produce a linear sampling signal representative of data signal intensity, and the sample pulses can be configured to temporally step through the optical data signal so that a sampled representation of the optical data signal is obtained.