Results . AlGaAs photonic chip and experimental setup . The schematic of our experimental setup is presented in Fig. 1c and consists of three stages: entanglement generation with an AlGaAs chip, frequency demultiplexing/multiplexing (demux/mux) of the generated signal, and a distribution stage. Note that two different frequency demultiplexing/multiplexing approaches can be implemented, depending on the spectral region of interest: in the telecom C-Band (1530–1565?nm) we use a WSS and in t...