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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其中包括信号的调制电路、电光变换、光检测器、均衡放大器和滤波器等。

It is Consisted of modulation circuits, electrical optical converting, photodetector, equalizing amplifier and filter etc.

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设计实现了一个数字幅频均衡的功率放大器。

A digital amplitude-frequency equalization power amplifier was presented.

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