Webb B, Louri A
Department of Electrical and Computer Engineering, the University of Arizona, Tucson, Arizona 85721, USA.
Appl Opt. 1999 Oct 10;38(29):6176-83. doi: 10.1364/ao.38.006176.
A design for an all-optical crossbar network utilizing wavelength-tunable vertical-cavity surface-emitting laser (VCSEL) technology and a combination of free-space optics and compact optical waveguides is presented. Polymer waveguides route the optical signals from a spatially distributed array of processors to a central free-space optical crossbar, producing a passive, all-optical, fully connected crossbar network directly from processor to processor. The analyzed network could, relatively inexpensively, connect local clusters of tightly integrated processors. In addition, it is also believed that such a network could be extended, with wavelength reuse, to connect much larger numbers of processors in a multicluster network.
本文提出了一种全光交叉开关网络的设计方案，该方案利用波长可调垂直腔面发射激光器（VCSEL）技术以及自由空间光学和紧凑型光波导的组合。聚合物波导将光信号从空间分布的处理器阵列路由到中央自由空间光交叉开关，直接在处理器之间产生一个无源、全光、全连接的交叉开关网络。所分析的网络能够以相对较低的成本连接紧密集成的处理器的本地集群。此外，人们还认为，这样的网络可以通过波长复用进行扩展，以连接多集群网络中数量更多的处理器。
