Simultaneous NRZ-to-RZ format conversion and one-to-six error-free channel multicasting using a single pump in a highly nonlinear fiber.

We demonstrate simultaneous 10-Gb/s NRZ-to-RZ format conversion and multicasting from one to many data channels in a highly nonlinear fiber (HNLF) with only a single pump. Functionalities are achieved based on various nonlinear effects, such as four-wave-mixing (FWM), cross-gain-modulation (XGM) and cross-phase-modulation (XPM) between the pump channel and the NRZ data channel. Up to five and six converted data channels are error-free (10(-9) BER) as the wavelength spacing between the pump and the NRZ signal is set to 0.4-nm and 0.8-nm, respectively.

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