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:
Feb. 28, 2012
Filed:
Oct. 29, 2008
Christoph T. Wree, Ewing, NJ (US);
Suhas P. Bhandare, Levittown, PA (US);
Donald A. Becker, Edison, NJ (US);
Daniel R. Mohr, Allentown, NJ (US);
Abhay M. Joshi, New Hope, PA (US);
Christoph T. Wree, Ewing, NJ (US);
Suhas P. Bhandare, Levittown, PA (US);
Donald A. Becker, Edison, NJ (US);
Daniel R. Mohr, Allentown, NJ (US);
Abhay M. Joshi, New Hope, PA (US);
Discovery Semiconductors, Inc., Ewing, NJ (US);
Abstract
Repeaterless transmission of differential phase-shift keying (DPSK) at 10.7 Gb/s over at least 304 km of standard single-mode fiber is obtained through use of a coherent optical receiver including electronic dispersion compensation. High receiver sensitivity and high tolerance to nonlinearities of DPSK, allow overcoming a total link loss of 58 dB with a 3 dB system margin, through use in the receiver of heterodyne detection to preserve phase distortions resulting from chromatic dispersion, to permit electronic dispersion compensation to be used.