Patent ID: 9537600
Date: 2017-01-03
CPC Classifications: H04B,H04J

Claim:
1. A receiver device (Rx 1 _ a , Rx 1 _ b , Rx 1 _ c , Rx 1 _ d ) designed to receive an optical signal (λ 1 ) emitted by a transmitter device (Tx 1 ) comprising a light source for emission of the optical signal, the optical signal being transmitted by a passive optical network with wavelength division multiplexing, the receiver device being characterized in that it comprises: an optical amplifier (Amp_a, Amp_b, Amp_c, Amp_d) for amplifying the optical signal received from the transmitter device; an optical detector (D_b, D_d) designed to detect data in the amplified optical signal; an optical reflector (Ref_a, Ref_b) configured for reflecting the amplified optical signal toward the transmitter device, in order to seed the wavelength of the optical signal emitted by the transmitter device by means of a return path followed by the optical signal between the transmitter device and the optical reflector.