Long-reach passive optical network using remote modulation of an amplification optical signal

A line termination device of a passive optical network adapted to receive a first data optical signal, said device including:

• means for receiving the first optical signal;
• means for separating said first and a second amplification optical signal;
• means for modulating the second amplification optical signal to produce a modulated second amplification optical signal;
• means for amplifying the modulated second amplification optical signal to produce an amplified modulated second amplification optical signal;
• means for injecting the amplified modulated second amplification optical signal into said network;
• said modulating means being connected to the output of the means for separating the first and second signals and to the input of the means for amplifying.

A method comprising:

• receiving a first optical signal by a line termination device of a passive optical network;
• separating the first amplification optical signal and a second amplification optical signal;
• modulating the second amplification optical signal to produce a modulated second amplification optical signal;
• amplifying the modulated second amplification optical signal to produce an amplified modulated second amplification optical signal;
• injecting the amplified modulated second amplification optical signal into the network.