Review of Robust Data Exchange Using Optical Nonlinearities
Figure 16
Constellation diagrams for 100 Gbit/s DQPSK data exchange. (a) S1: back-to-back. (b) S2: back-to-back. (c) S1 after wavelength conversion (WC: S2 to S1) (S1: OFF, S2: ON). (d) S2 after wavelength conversion (WC: S1 to S2) (S1: ON, S2: OFF). (e) S1 after data exchange (Ex.: S2 to S1) (S1: ON, S2: ON). (f) S2 after data exchange (Ex.: S1 to S2) (S1: ON, S2: ON).
