Self-Routing Nonblocking WDM Switches Based on Arrayed Waveguide Grating
Self-Routing Nonblocking WDM Switches Based on Arrayed Waveguide Grating
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DOI：
10.1587/transcom.e92.b.1173
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发表时间：
2009-04
期刊：
影响因子：
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通讯作者：
Y. Fukushima;Xiaohong Jiang;A. Pattavina;S. Horiguchi
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文献类型：
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作者：
Y. Fukushima;Xiaohong Jiang;A. Pattavina;S. Horiguchi
阵列波导光栅（AWG）是构建高速大容量波分复用（WDM）交换机的一种很有前途的技术，因为它切换速度快、可扩展到较大尺寸且功耗低。为了充分发挥高速AWG的优势，基于大量AWG的交换机的路由控制应尽可能简单。在本文中，我们专注于具有O(1)恒定路由复杂度的基于AWG的交换机的自路由设计，并提出了一种新的自路由AWG交换机结构，该结构对于波长到波长和波长到光纤请求模型都能保证良好的无阻塞特性。我们还从阻塞特性、硬件成本和串扰性能方面对所提出的设计进行了全面分析，并与传统设计进行了比较。预计所提出的结构将对未来超高速光分组/突发交换机的设计和全光实现有所帮助。
Arrayed waveguide grating (AWG) is a promising technology for constructing high-speed large-capacity WDM switches, because it can switch fast, is scalable to large size and consumes little power. To take the full advantage of high-speed AWG, the routing control of a massive AWG-based switch should be as simple as possible. In this paper, we focus on the self-routing design of AWG-based switches with O(1) constant routing complexity and propose a novel construction of self-routing AWG switches that can guarantee the attractive nonblocking property for both the wavelength-to-wavelength and wavelength-to-fiber request models. We also fully analyze the proposed design in terms of its blocking property, hardware cost and crosstalk performance and compare it against traditional designs. It is expected that the proposed construction will be useful for the design and all-optical implementation of future ultra high-speed optical packet/burst switches.