Optical-signal-processing device based on waveguide-type variable delay lines and optical gates
Optical-signal-processing device based on waveguide-type variable delay lines and optical gates
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DOI：
10.1109/jlt.2006.875254
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发表时间：
2006-07
影响因子：
4.7
通讯作者：
K. Takiguchi;M. Itoh;T. Shibata
中科院分区：
文献类型：
--
作者：
K. Takiguchi;M. Itoh;T. Shibata
本文介绍了一种主要用于时隙交换的光信号处理装置。该器件由平面光波电路技术制作的可变延迟线阵列和高速光门组成。可变延迟线阵列由横向或点阵形式的光路组成。其工作原理是基于串并转换、调整并行信号之间的延迟时间以及对光学区域中的光比特或分组进行选通。该装置不需要通过光学非线性效应或滤波器组进行码匹配的光波之间的任何相互作用。作为其操作的一个例子，展示了标签处理功能，特别是光学归零脉冲的标签交换。文中描述了该装置的优点，并讨论了需要解决的问题。
In this paper, an optical-signal-processing device mainly designed for time-slot switching is demonstrated. The device is composed of variable delay-line arrays fabricated by planar lightwave circuit technology and high-speed optical gates. The variable delay-line arrays consist of transversal-form or lattice-form optical circuits. The operating principle is based on serial-to-parallel conversion, adjustment of the delay time between the parallel signals, and the gating of the optical bits or packets in the optical region. The device does not require any interaction between lightwaves through optical nonlinear effects or filter banks for code matching. As an example of its operation, label-processing functions are demonstrated, specifically the label swapping of optical return-to-zero pulses. The merits of the proposed device are described and problems that must be solved are also discussed.