Patent ID: 9124368
Filing Date: 2015-09-01
Classification: H04B,H04J

Abstract:
1. A transceiver adapted for use in a fibre network, the transceiver comprising a Subcarrier Multiplexing, SCM, device; a laser diode; a Red-Blue Filter, RBF, having a red channel, a blue channel and a common channel; a photo diode, PD; and a Subcarrier Demultiplexing, SCDM, device, wherein the SCM device comprises at least two input ports and one output port, the SCM device being adapted to receive electromagnetic signals on the at least two input ports, to multiplex the electromagnetic signals into a multiplexed electromagnetic signal and to output the multiplexed electromagnetic signal to the laser diode, the laser diode being adapted to receive the multiplexed electromagnetic signal, to convert the multiplexed electromagnetic signal to optical signals comprising a plurality of subcarriers of different wavelengths distributed in frequency around a main optical carrier, and to output the plurality of subcarriers to the red channel of the RBF, the RBF being adapted to receive the plurality of subcarriers, and to output the plurality of subcarriers to the fibre network via the common channel, the RBF further being adapted to receive subcarriers on the common channel and to filter out blue frequencies of the received subcarriers and to output subcarriers having blue wavelengths to the photo diode, the photo diode being adapted to receive the subcarriers having blue wavelengths from the RBF, convert the received subcarriers having blue wavelengths into an electromagnetic signal and to output the electromagnetic signal to the SCDM device, the SCDM device being adapted to receive the electromagnetic signal, to demultiplex the electromagnetic signal into at least two electromagnetic signals and to output the at least two electromagnetic signals.