METHOD AND DEVICES FOR BIDIRECTIONAL TRANMISION OPTICAL PUNTO-A-MULTIPUNTO USING A SPLITTER OF OPTIC

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Method and devices for point-to-multi-point optical bidirectional transmission using a splitter of optical signal with reduced losses of insertion. Method and devices for the remote pumping from the terminal of the user (the UN) towards the stages of the amplification including in fiber the external plant (ODN) passive of the access network (AN) cradles in multiplexación in the temporary dominion (TDM). Within the UN, an amplifier is used to amplify the data signal and it is reused for the generation of the pumping by means of a curl of pumping generation. Besides devices to insert in the ODN and thus to take advantage of the pumping generated by the ONUs, to generate optical amplification in points of the ODN with majors losses, like splitters of optical signal, by means of drugged optical fibers with rare earth. This way they are reduced or even the ODN significantly compensates the losses allowing more points of interconnection or distance, to vice versa relay the traffic of data of the OLT to the UN and.