经过均衡和再生后，转变成标准的数字脉冲信号。

After equilibrium and regeneration the current pulse signal reverts to standard digital pulse signal.

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为了获得振幅均衡的有理数谐波锁模脉冲，必须在原有的实验装置中添加一个掺铒光纤放大器(EDFA)以提高注入调制光信号功率。

For obtaining a pulse series with a small amplitude ripple, an Erbium-doped Fiber Amplifier (EDFA) must be added into the primary experiment setup to enhance injection-modulation signal power.

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详细论述了多电平PAM（脉冲幅度调制）系统的最佳均衡理论。

The optimum equalization theory for overcoming the intersymbol interferences (ISI) in multi-level pulse amplitude modulation (PAM) systems is establishead.

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