使用滑频滤波器抑制孤子相位抖动

采用微扰法,分析了滑频滤波器抑制孤子相位抖动。结果表明,在加入滑频滤波作用后,主要由放大器自发辐射噪声(ASE)所导致的孤子相位抖动,从无任何控制措施时的随距离立方增长变为随距离线性地变化;并且当滤波器中心频率随距离作线性滑动时,上滑频(ω′f>0)方案要优于下滑频(ω′f<0)方案。

Reducing Soliton Phase Jitter by Sliding-Frequency Guiding Filters

The effects of the sliding-frequency guiding filters on reducing soliton phase jitter were theoretically studied by perturbation theory.The results show that the soliton phase jitter induced by spontaneous emission noise of amplifier increases only linearly as the propagation distance cube in the absence of control when the sliding-frequency guiding filters are used;The use of up-sliding is more preferable than down-sliding when the center frequency of filter is linearly sliding with distance along the fiber.