Bidirectional data transmission on an optical waveguide

Details Bidirectional data transmission on an optical waveguide Bidirectional data transmission on an optical waveguide

H - Electricity

04

J

H04J 14/08 (2006.01) H04B 10/24 (2006.01)

Patent

CA 2069664

ABSTRACT OF THE DISCLOSURE A method is disclosed for digital bidirec-tional data transmission on an optical waveguide. For either direction of data transmission, light pulses having the same frequency are used. The pulses to be transmitted are reduced from an original width Tb to a width Tr, so that the pulse-to-pause ratio Tr/(Tb - Tr) is smaller than one. A second transmitter/receiver unit is allowed to transmit during a reception pause (Tb - Tr) only. In order to achieve an optimum distribution of the optical pulses on the optical waveguide 3, the first transmitter/receiver unit 1 measures the timing on the optical waveguide 3 and, if required, causes the second transmitter/receiver unit to modify the transmission time of its optical signals. Thereby, a control loop is established, automatically achieving an optimum pulse distribution on the optical waveguide, within certain limits.

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