Patent ID: 7593648
Filing Date: 2009-09-22
Classification: H04B

Abstract:
1. Method for high bit rate fiber-optic communications over a span having at least one pair of single-mode transmission fibers, comprising: transmitting optical data streams at selected optical wavelengths through a first fiber of said at least one pair of single-mode transmission fibers; analyzing error data in received optical data streams associated with terminals coupled to the span; propagating a control signal toward a transmitter through at least one of a second fiber of said at least one pair of single-mode fibers and a management network, said control signal adapted to modify optical wavelength transmission parameters in a manner tending to reduce said error data; modifying optical wavelength transmission parameters in response to said control signal by incrementally changing a tunable optical wavelength associated with transmitted optical data streams to transmit the optical data streams at a tunable optical wavelength providing compensation of chromatic dispersion; the terminals including a means for compensating chromatic dispersion in a transmission fiber for at least one wavelength in a range of tunable optical wavelengths; and transmitting the optical data streams at said at least one wavelength providing compensation of chromatic dispersion in a transmission fiber.