Optical Serial-to-Parallel Conversion Technique With Phase-Shifted Preamble for Optical Label Switching Systems
Optical Serial-to-Parallel Conversion Technique With Phase-Shifted Preamble for Optical Label Switching Systems
复制标题
用于光学标签交换系统的具有相移前导码的光学串并转换技术
DOI：
10.1109/jqe.2011.2162398
复制
发表时间：
2011
影响因子：
2.5
通讯作者：
H. Uenohara
中科院分区：
文献类型：
--
作者：
G. Yazawa;S. Shimizu;H. Uenohara
研究了相移前导光串并转换器(OSPC)的基本工作原理及其在光标签交换中的应用。OSPC由在发送端产生的分组顶部的π/2相移前导码和具有选通比特定时位置的延迟长度的-π/2相位偏置马赫-曾德尔延迟干涉仪和接收侧的平衡光电探测器组成。首先，对OSPC的基本性能进行了仿真。确认了串并操作的可能性。考虑了对理想情况下的光相位差、波导损耗、消光比和输入信号的啁啾的操作容限。然后，对OSPC的运行进行了实验研究。在输入信号消光比为13d B的情况下，可实现4位运算，抑制比为8d B。为了验证OSPC是否工作稳定，是否可以应用于光标签交换系统，还研究了40 Gb/S 2比特标签的分组传输操作，首次成功地实现了无差错性能。
We have investigated the fundamental operation of optical serial-to-parallel converter (OSPC) scheme with phase-shifted preamble, and its application to optical label switching operation. The OSPC consists of a π/2 phase-shifted preamble at the top of the packet generated at a transmitter-side, and a -π/2 phase-biased Mach-Zehnder delayed interferometer with the delay length of the timing position of the gated bit followed by a balanced photodetector at a receiver-side. Firstly, we simulated the fundamental performance of the OSPC. The possibility of the serial-to-parallel operation was confirmed. The operation tolerance against the optical phase discrepancy from the ideal conditions, waveguide loss, extinction ratio, and chirp of the input signal were considered. Then, OSPC operation was experimentally investigated. 4-bit operation could be achieved with a suppression ratio of 8 dB in case of the input signal extinction ratio of 13 dB. For the purpose of verifying if the OSPC worked stably and if it could apply to optical label switching systems, packet transfer operation at a bit rate of 40 Gb/s with 2-bit label was also investigated, and we achieved error-free performance successfully for the first time.
DOI：
--
发表时间：
2005
期刊：
Electron. Lett vol.41, no.23
影响因子：
--
作者：
Uenohara Hiroyuki;R. Kurosawa
通讯作者：
R. Kurosawa