Parallel WDM signal processing in mixed NRZ and RZ transmission networks using a single optical gate with multiple switching windows
Parallel WDM signal processing in mixed NRZ and RZ transmission networks using a single optical gate with multiple switching windows
复制标题
使用具有多个切换窗口的单个光闸在混合 NRZ 和 RZ 传输网络中进行并行 WDM 信号处理
DOI：
10.1109/jstqe.2011.2151832
复制
发表时间：
2012
影响因子：
4.9
通讯作者：
Naoto Kishi
中科院分区：
文献类型：
--
作者：
Hung Nguyen Tan;Motoharu Matsuura;Naoto Kishi
我们提出并在实验中演示了一种多开关窗口光门（MW-OG）的并行多波长处理的应用。所提出的方案是一个多波长兼容版本的传统Sagnac干涉开关，提供独立的可控性，在不同的波长的开关窗口。这一特性使得波分复用信号的并行脉宽可调的非归零（NRZ）和归零（RZ）数据格式转换成为可能。它也导致了多波长再生对色散和放大的自发辐射噪声的NRZ和RZ信号在光学采样过程。然后，MW-OG被用作标准单模光纤上的混合NRZ和RZ数据格式传输网络中的在线信号再生，而无需色散补偿。再生在中心节点处进行，该中心节点用作节点之间的各种互连的终端和中间体。传输性能显着改善所有通道同时根据其调制格式和光路并行脉宽管理。
We propose and demonstrate in experiment a multiple switching-window optical gate (MW-OG) for applications on parallel multiwavelength processing. The proposed scheme is a multiwavelength compatible version of the conventional Sagnac interferometric switch that offers independent controllability of switching windows at different wavelengths. This feature makes possible the data format conversion from nonreturn-to-zero (NRZ) and return-to-zero (RZ) with parallel pulsewidth tunability for wavelength-division-multiplexed signals. It also leads to the multiwavelength regeneration against chromatic dispersion and amplified spontaneous emission noise for both NRZ and RZ signals over the optical sampling processes. The MW-OG is then used as inline signal regeneration in a mixed NRZ and RZ data format transmission network over standard single-mode fiber without dispersion compensation. The regeneration is carried out at a central node that works as a terminal and an intermediate for various interconnections among nodes. Transmission performances are significantly improved for all channels simultaneously by parallel pulsewidth management in accordance with their modulation formats and lightpaths.