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Employing 8PSK and 16PSK modulation formats, non-degenerate four-wave mixing (FWM) in a single highly nonlinear fiber (HNLF), and coherent detection, we experimentally demonstrate 40-Gbaud/s (120-Gbit/s) octal and 10-Gbaud/s (40-Gbit/s) hexadecimal simultaneous addition (A+B) and bidirectional subtraction (A-B, B-A).
We experimentally demonstrate a tunable optical generation of up to 40-Gbaud 16-QAM from a QPSK signal using a variable DGD element based on vector addition between two polarization states. We also show the baud rate tunability and investigate the tolerance of 16-QAM generation to the DGD offset.
We report first experimental demonstration on the non-transparent characteristic of FWM using NRZDPSK, RZ-DPSK, CSRZ-DPSK, and CSRZ signals. One potential non-transparency application of 40 Gbit/s CSRZ-to-RZ format conversion is experimentally demonstrated.
We experimentally demonstrate all-optical 40 Gbit/s multicasting XOR logic gate for NRZ-DPSK signals by using non-degenerate four-wave mixing (FWM) in a highly linear fiber (HNLF). Triple-channel XOR outputs are simultaneously achieved in the experiment.
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