理论和实验研究了基于光纤中自相位调制效应和偏移滤波的全光2R再生，实现了因放大的自发辐射噪音而恶化的数据信号的再生.数值研究了输入平均功率对信号再生的影响，结果表明，通过控制输入光纤的平均功率，Q值在5到12的40 Gb/s归零码信号再生后均可实现Q值和幅度抖动的改善.最后进行了基于高非线性色散位移光纤的10 Gb/s归零码ASE恶化数据信号的再生实验，误码率为10－9时标准时的再生功率代价仅为0.1 dB.

All-optical 2R regeneration based on self-phase modulation in the fiber and subsequent offset filtering was investigated numerically and experimentally to restore optical data signals degraded due to amplified spontaneous emission (ASE) noise.Numerical results show that Q factor and amplitude jitter can be improved for 40 Gb/s return-to-zero (RZ) signals with Q factor between 5 and 12 when the fiber input average power is chosen suitably.The regeneration experiment on 10 Gb/s RZ ASE-degraded data signal was demonstrated using a highly-nonlinear dispersion-shifted fiber,and a power penalty of only 0.1 dB was measured at 10-9 bit-error-ratio.