Figure 7
From: Coherent photonic Terahertz transmitters compatible with direct comb modulation

(a) \(G_{\langle I_{PD}\rangle }\), and (b) \(G_{req.\,X,N}\) for 2-line modulation (i.e., \(G_{req.\,1,2}\)) and the modulation of a 10-line comb (i.e., \(G_{req.\,X,10}\)).