Figure 4
From: Orthogonal-band-multiplexed offset-QAM optical superchannel generation and coherent detection
Experimental setup of OBM-OQAM superchannel generation, transmission and detection.
(ECL: external cavity laser; OFCG: optical frequency comb generator; OFG: optical frequency generator; RF: radio frequency; IQ mod.: in-phase and quadrature modulator; AWG: Arbitrary waveform generator; LPF: low pass filter; OBPF: optical band pass filter; LO: local oscillator; ADC: analog to digital convertor).
