Optical waveguides – With optical coupler – Particular coupling structure
Patent
1993-09-10
1995-03-21
Goldstein, Herbert
Optical waveguides
With optical coupler
Particular coupling structure
319160, 319173, 319179, 319182, 319326, 319338, 319341, 385122, 372 6, H04B 1000, H01S 300
Patent
active
054001650
ABSTRACT:
An optical communication system and method are provided which utilize dispersion-induced FM to AM conversion with nonlinearity-induced AM stabilization. The system and method utilize a frequency modulated optical signal transmitter, a fiber span, an optical receiver which receives the transmitted optical signal and detects an AM signal resulting from dispersion-induced energy overlaps and voids in the optical signal, and one or more in-line amplifiers spaced within the optical fiber span. By adjusting the number, position and/or output power levels of the in-line amplifiers, stabilization of the energy voids and overlaps and resulting AM signal can be achieved, yielding a substantial increase in achievable transmission distance at a given bit rate.
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Gnauck Alan H.
Kurtzke Christian
AT&T Corp.
Goldstein Herbert
Negash Kinfe-Michael
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