Inventors:
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
Assignee:
Discovery Semiconductors, Inc. - Ewing NJ
International Classification:
H04B 10/06
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.