论文部分内容阅读
基于非线性效应的全光组播,以其能直接在光域内将信息从单节点路由到多目标节点而受到广泛关注。实验证实了利用色散平坦高非线性光子晶体光纤级联光学滤波器实现全光波长组播的新方案,通过使用窄带光学滤波器依次选择自相位调制加宽光谱分量,对速率为40 Gbit/s的归零信号实现了极性保持、通道间距100 nm的1到6信道全光波长组播。进一步研究了所设计全光波长组播器的动态特性,结果表明,它具有20 nm的宽带波长调谐范围,同时,对输入信号的光功率波动具有较强的容忍性,系统整体结构简单,在未来透明光子网络中很有应用潜力。
All-optical multicast based on nonlinear effects attracts much attention due to its ability to route information directly from a single node to a multi-destination node in the optical domain. Experiments have confirmed the new scheme of realizing all-optical wavelength multicasting by using a dispersion-flattened high-nonlinearity photonic crystal fiber cascaded optical filter. By using a narrow-band optical filter, self-phase modulation is used to broaden the spectral components and the rate is 40 Gbit / s Of the zero signal to achieve the polarity of the channel spacing of 100 nm 1 to 6 channel all-optical wavelength multicast. The dynamic characteristics of the all-optical wavelength multiplexer are also studied. The results show that it has a tunable bandwidth of 20 nm and a strong tolerance to the optical power fluctuation of the input signal. The overall structure of the system is simple. Future transparent photonic networks have great potential applications.