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1.发明授权Network topology for reduced blocking and photonic system implementation thereof 失效网络拓扑用于减少阻塞和光电系统的实现
公开(公告)号：US5077483A
公开(公告)日：1991-12-31
申请号：US349281
申请日：1989-05-08
申请人： Thomas J. Cloonan , Stephen J. Hinterlong , Harvard S. Hinton , Frank K. Hwang , Jurgen Jahns , Jack L. Jewell , Anthony L. Lentine , Frederick B. McCormick, Jr. , David A. B. Miller , Miles J. Murdocca , Michael E. Prise , Gaylord W. Richards
发明人： Thomas J. Cloonan , Stephen J. Hinterlong , Harvard S. Hinton , Frank K. Hwang , Jurgen Jahns , Jack L. Jewell , Anthony L. Lentine , Frederick B. McCormick, Jr. , David A. B. Miller , Miles J. Murdocca , Michael E. Prise , Gaylord W. Richards
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/0052 , H04Q2011/0081 , H04Q2011/009
摘要： A reduced-blocking system where a perfect shuffle equivalent network having a plurality of node stages successively interconnected by link stages, is advantageously combined with expansion before the node stages and/or concentration after the node stages in a manner allowing the design of a system with arbitrarily low or zero blocking probability. An illustrative photonic system implementation uses free-space optical apparatus to effect a low loss, crossover interconnection of two-dimensional arrays of switching nodes comprising, for example, symmetric self electro-optic effect devices (S-SEEDs). Several low loss beam conbination techniques are used to direct multiple arrays of beams to an S-SEED array, and to redirect a reflected output beam array to a subsequent node stage.
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公开(公告)号：US5023864A
公开(公告)日：1991-06-11
申请号：US349008
申请日：1989-05-08
CPC分类号： H04L49/1592 , H04L49/357 , H04Q11/0001 , H04L49/1515 , H04L49/254 , H04L49/45
摘要： A crossover network implemented using two-dimensional arrays of nodes. The network is a perfect shuffle equivalent network because it is topologically equivalent to a crossover network of one-dimensional arrays of nodes. The two-dimensional arrays are arranged in rows and columns and there are a plurality of link stages interconnecting successive arrays. The network is implemented efficiently in free space optics because the network topology requires optical crossovers in some link stages that interconnect only nodes in the same column of successive arrays and optical crossovers in the other link stages that interconnect only nodes in the same row of successive arrays.
摘要翻译： 使用二维节点阵列实现的交叉网络。 网络是一个完美的洗牌等效网络，因为它在拓扑上等同于一维节点阵列的交叉网络。 二维阵列以行和列排列，并且有多个链接级互连连续的阵列。 网络在自由空间光学系统中有效地实现，因为网络拓扑结构需要在一些链路级中进行光交叉，这些链路级仅互连连续阵列的同一列中的节点和仅连接同一行连续阵列中的节点的其他链路级中的光交叉 。
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公开(公告)号：US4917456A
公开(公告)日：1990-04-17
申请号：US219623
申请日：1988-07-15
申请人： Jurgen Jahns , Miles J. Murdocca
发明人： Jurgen Jahns , Miles J. Murdocca
CPC分类号： G02B27/106 , G02B27/144 , G02B27/145
摘要： A crossover network is obtained by using a plurality of similar optical crossover stages. Each stage includes two light paths that combine at an output plane. One path provides the direct connection while the other path provides the crossover connection. To realize this crossover capability, each stage comprises a beam splitter element that accepts a beam containing an image array and develops therefrom two beams that are each directed in two different paths. Along one path, means are provided for reversal of selected segments of the image array and for sending of the reversed or crossed-over image through a beam combiner. Along the second path, means are provided for applying the light to a beam combiner without the image reversal. One disclosed means for image reversal is a prismatic mirror. The number of corners in such a mirror differs from stage to stage.
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