中文摘要：

利用高非线性光纤中的四波混频饱和效应,实验展示了42.8Gbit/s非归零差分相移键控（NRZ-DPSK）信号和归零差分相移键控（RZ-DPSK）信号的全光幅度再生.测量了NRZ-DPSK信号和RZ-DPSK信号经过高非线性光纤的功率传递曲线.在平均输入功率均为16dBm的条件下,对两种调制格式的再生性能进行了比较.实验结果显示RZ-DPSK信号具有更好的幅度再生性能.

英文摘要：

The all-optical amplitude regeneration of both nonreturn-to-zero differential phase-shift keying （NRZ-DPSK） and return-to-zero DPSK （RZ-DPSK） signals at a bit rate of 42.8 Gbit/s is demonstrated experimentally,utilizing saturation of four-wave mixing in a highly nonlinear optical fiber （HNLF）. The power transfer curves of the HNLF for both NRZ-DPSK and RZ-DPSK signals are measured. The regenerative performance for both modulation formats are compared at the same average input power of 16 dBm. Experiment results show that the RZ-DPSK signal exhibits better performance of amplitude regeneration.