Advances in Condensed Matter Physics / 2020 / Article / Fig 3

Research Article

Generation of (3, 1) Vector Signal Based on Probabilistic Shaping Technology without Precoding

Figure 3

Schematic diagram of PS (3, 1) photonic vector signal generation: (a) the method of generating PS (3, 1) electronic vector signals; (b) relationship between MZM output power and DC bias voltage; (c) optical spectrum of the signal at the MZM output; (d) distribution of pre-PD constellation points; (e) distribution of post-PD constellation points.

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