Orange

France Telecom

Bertrand Le Guyader

Erwan Pincemin

Philippe Chanclou

Fabienne Saliou

Naveena Genay

Benoît Charbonnier

A method is provided for generating a plurality of electrical signals from polychromatic optical signals extracted from a set of optical fibers, a polychromatic signal including a plurality of predetermined wavelengths. An electrical signal is generated by using predetermined wavelengths. The method includes: grouping the extracted optical signals together into a polychromatic optical signal beam; separating the polychromatic signal beam into a plurality of monochromatic optical signal beams; and converting the plurality of separated monochromatic optical signal beams into the plurality of electrical signals.

Method and device for generating electrical signals corresponding to a wavelength, from polychromatic optical signals

A passive optical network is provided, which includes an optical central office connected to a line termination device by a branch of the network including a passive amplification medium. The central office is adapted to send/receive a first data optical signal and has a first amplifier for sending a second amplification optical signal. The second signal exciting the amplification medium to amplify the optical power of an optical signal. The line termination device is adapted to receive the first optical signal, modulate the second amplification optical signal; and inject the modulated second signal into the network.

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

Growing community of inventors

Trevou Treguignec, France

Bertrand Le Guyader