Passive Waveguide Device Consisting of Cascaded Asymmetric X-junction Couplers for High-Contrast Recognition of Optical BPSK Labels
Passive Waveguide Device Consisting of Cascaded Asymmetric X-junction Couplers for High-Contrast Recognition of Optical BPSK Labels
复制标题
由级联非对称 X 结耦合器组成的无源波导器件，用于光学 BPSK 标签的高对比度识别
DOI：
10.1109/jlt.2011.2124442
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发表时间：
2011
影响因子：
4.7
通讯作者：
et al
中科院分区：
文献类型：
--
作者：
Akito Ihara;et al
高速光网络中的数据包路由需要快速的全光处理。在光子标签网络中，光标签的识别是其关键功能之一。我们提出了一种可扩展的无源波导器来识别二进制相移键控(BPSK)标签。标签识别装置由级联的非对称X结耦合器组成。所提出的基本设备识别由平行的四个脉冲组成的四个标签。由于在具有高对比度的四个端口中只有一个输出端口获得输出，因此该设备可以被放大以用于更大数量的比特的标签。对四个、八个和十六个标签的器件进行了理论分析。为了验证设备中的操作，使用有限差分束传播法(FD-BPM)对四位和八位标签的识别进行了数值模拟。还给出了基于四位基本器件的扩展电路，以增加可识别标签的数量。
Fast all-optical processing is expected for packet routing in high-speed photonic networks. In photonic label networks, recognition of optical labels is one of the key functions. We propose a scalable passive waveguide device to recognize binary phase shift keying (BPSK) labels. The label recognition device consists of cascaded asymmetric X-junction couplers. The proposed basic device recognizes four labels consisting of parallel four pulses. Since an output is obtained at only one output port out of four ports with high contrast ratio, the device can be scaled up for labels of a larger number of bits. The devices for four, eight and sixteen labels are theoretically analyzed. To confirm the operation in the devices, the label recognition of four- and eight-bit labels is numerically simulated by finite-difference beam propagation method (FD-BPM). Expanded circuits based on the four-bit basic device to increase the number of recognizable labels are also presented.