In order to expand its enlargement band width, this article uses DSF and the monomode fiber (SMF) the cascade constructs the cyclical chromatic dispersion to compensate double pump FOPA the method.

• 为了拓宽其放大带宽，本文采用DSF和单模光纤（SMF）级联来构造周期色散补偿双泵浦FOPA的方法。