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公开(公告)号：US5172259A
公开(公告)日：1992-12-15
申请号：US661762
申请日：1991-02-27
申请人： Thomas J. Cloonan , John R. Erickson , Anthony L. Lentine , Frederick B. McCormick, Jr. , Gaylord W. Richards
发明人： Thomas J. Cloonan , John R. Erickson , Anthony L. Lentine , Frederick B. McCormick, Jr. , Gaylord W. Richards
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0039 , H04Q2011/005
摘要： A network comprising a plurality of successively interconnected node stages where each node has an associated data connection state and includes a control element, significantly implemented as part of the node itself, for controlling the data connection state of at least one node of the following stage. The network is well suited for optical implementation and is controlled by shifting bits into the network for storage by the control elements rather than relying on spatial light modulators.
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公开(公告)号：US5153757A
公开(公告)日：1992-10-06
申请号：US661790
申请日：1991-02-27
申请人： Thomas J. Cloonan , John R. Erickson , Anthony L. Lentine , Frederick B. McCormick, Jr. , Gaylord W. Richards
发明人： Thomas J. Cloonan , John R. Erickson , Anthony L. Lentine , Frederick B. McCormick, Jr. , Gaylord W. Richards
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0039 , H04Q2011/005
摘要： A network arrangement and control method where, before any transmission of data occurs for a particular communication, a network controller determines an unused path to provide a connection, advantageously all the way through the network from a given inlet to a given outlet. Once the identity of the unused path is known, the controller determines control information for use in activating that path and transmits that control information into the network, significantly via the network inlets. The network responds by activating the determined path and communication is enabled via the activated path, but only for the single connection and no buffering of information is required within the network. The network is particularly well suited for optical implementation and control is effected without the use of spatial light modulators but rather by means of control elements embedded within the network itself.
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公开(公告)号：US5122892A
公开(公告)日：1992-06-16
申请号：US349280
申请日：1989-05-08
CPC分类号： H04Q11/0005 , H04Q2011/0039
摘要： A multi-stage network which achieves the same overall connectivity as known networks but where individual switching nodes have no input selectivity and no output selectivity. Each node is enabled or disabled to control communication therethrough in response to a single control signal. The functionality of a switching network is achieved by controlling which nodes are enabled rather than specifying connections of particular node inputs and outputs to be effected by the nodes. In a photonic network embodiment, each network node is implemented using a single symmetric self electro-optic effect device (S-SEED).
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公开(公告)号：US5258978A
公开(公告)日：1993-11-02
申请号：US803501
申请日：1992-01-22
CPC分类号： H04Q11/0005 , H04Q2011/0052 , H04Q2011/0081
摘要： A multi-stage network which achieves the same overall connectivity as known networks but where individual switching nodes have no input selectivity and no output selectivity. Each node is enabled or disabled to control communication therethrough in response to a single control signal. The functionality of a switching network is achieved by controlling which nodes are enabled rather than specifying connections of particular node inputs and outputs to be effected by the nodes. In a photonic network embodiment, each network node is implemented using a single symmetric self electro-optic effect device (S-SEED).
摘要翻译： 实现与已知网络相同的总体连接性，但是各个交换节点没有输入选择性且没有输出选择性的多级网络。 响应于单个控制信号，启用或禁用每个节点来控制通信。 交换网络的功能通过控制哪些节点被启用而不是指定由节点实现的特定节点输入和输出的连接来实现。 在光子网络实施例中，使用单个对称自电光效应装置（S-SEED）实现每个网络节点。
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5.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：US4830444A
公开(公告)日：1989-05-16
申请号：US140200
申请日：1987-12-31
CPC分类号： H04Q11/0003
摘要： An optical switch (100) is disclosed for switching spatially-separated complementary optical signals from a row of a two-dimensional input storage array (132) to a selected row of a two-dimensional ouptut storage array (133). The switch includes an input system (101) for converting temporally-separated information represented by a serial bit stream of complementary optical signals into a spatially-separated format for storage in the input array. An output system 105 is also included for converting the switched, spatially-separated information in the output array into a temporally-separated format for serial transmission on plurality of optical output fiber pairs 160(1)-160(N). The input and output systems enable the switch to perform both time- and space-division switching with only a single stage of switching. A distributor system (103), also included in the switch, spatially distributes the optical signal pairs from a row of the input array over the entire output array for selective storage of the information represented by the signals in one or more rows of the output array.
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8.发明授权Optical apparatus for combining light beam arrays having different wavelengths 失效用于组合具有不同波长的光束阵列的光学装置
公开(公告)号：US5036512A
公开(公告)日：1991-07-30
申请号：US349275
申请日：1989-05-08
申请人： Thomas J. Cloonan , Jack L. Jewell , Frederick B. McCormick, Jr. , David A. B. Miller , Michael E. Prise
发明人： Thomas J. Cloonan , Jack L. Jewell , Frederick B. McCormick, Jr. , David A. B. Miller , Michael E. Prise
CPC分类号： G02B27/283
摘要： Optical apparatus for performing wavelength-dependent beam combination. The apparatus relies on a polarization beam splitter in combination with other optical elements to develop combined beams with the same polarization type and that are therefore suitable for polarization-dependent combination with other beam arrays. A dichroic mirror, which is used as the wavelength-dependent element of the apparatus, is oriented such that the incident beams are substantially perpendicular to the mirror. With this orientation, the dichroic mirror achieves near-ideal performance even with beam arrays having a substantial angular field. The apparatus also uses two plates which, although designed for operation as quarter-wave plates at one of the two wavelights being combined, are oriented with their respective fast axes substantially perpendicular to each other such that polarization conversions, effected by the plates on beams having the other of the two wavelengths, substantially cancel each other.
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