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    Coupler add/drop node WDM network architecture with periodic cleanup
    3.
    发明授权
    Coupler add/drop node WDM network architecture with periodic cleanup 有权
    耦合器添加/删除节点WDM网络架构，定期清理

    公开(公告)号：US07116860B1

    公开(公告)日：2006-10-03

    申请号：US10728535

    申请日：2003-12-05

    申请人： Ornan Gerstel ,  Valerio Viscardi ,  Stefano Piciaccia ,  Gianpaolo Barozzi

    发明人： Ornan Gerstel ,  Valerio Viscardi ,  Stefano Piciaccia ,  Gianpaolo Barozzi

    IPC分类号： G02B6/293

    CPC分类号： H04J14/0204 ,  H01S3/0078 ,  H01S3/06758 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0219

    摘要： A efficient and inexpensive optical WDM network architecture with add and drop couplers. Add couplers and drop couplers connected to a network optical fiber with wavelength blocker units which filter out optical signals at selected wavelengths on the optical fiber. The wavelength blocker units are distributed among the add and drop couplers so that each segment of the optical fiber between pairs of neighboring wavelength blocker units has at least three add and drop couplers. More specifically, each segment has the following relationship: THRU+ADD+DROP+LOCAL≦TOTAL where THRU is the number of channels passing through the segment; ADD is the number of channels added within the segment; DROP the number of channels dropped within the segment; LOCAL the number of channels confined within the segment; and TOTAL is the total capacity of the optical fiber.

    摘要翻译： 一种高效且廉价的具有加和耦合器的光学WDM网络架构。 添加连接到具有波长阻挡单元的网络光纤的耦合器和降压耦合器，其滤除光纤上选定波长的光信号。 波长阻挡单元分布在加和耦合器之间，使得相邻波长阻挡器单元对之间的光纤的每个段具有至少三个加和耦合耦合器。 更具体地说，每个段具有以下关系：<？in-line-formula description =“In-line Formulas”end =“lead”？> THRU + ADD + DROP + LOCAL <= TOTAL <？in-line-formula description =“在线公式”end =“tail”？>其中THRU是通过段的通道数; ADD是在段内添加的通道数; 降低段内下降的通道数; 本地限制段内的通道数; 而TOTAL是光纤的总容量。

    Autoprotected optical communication ring network
    4.
    发明授权
    Autoprotected optical communication ring network 失效
    自动保护光通信环网

    公开(公告)号：US06973267B1

    公开(公告)日：2005-12-06

    申请号：US09608657

    申请日：2000-06-30

    申请人： Fulvio Arecco ,  Valerio Viscardi

    发明人： Fulvio Arecco ,  Valerio Viscardi

    IPC分类号： H04B10/00 ,  H04B10/08 ,  H04B10/14 ,  H04B10/24 ,  H04J14/02

    CPC分类号： H04B10/032 ,  H04J14/0283 ,  H04J14/0295

    摘要： An autoprotected optical communication ring network is disclosed. The ring network includes two optical carriers that are arranged for bidirectional transmission. Multiple optically reconfigurable nodes are connected along the optical carriers. The nodes communicate in pairs, defining non-overlapping working links. Under normal conditions, the nodes of each pair are optically configured to exchange optical signals over the working link at a first wavelength on the first carrier and at a second wavelength that is different from the first wavelength on the second carrier. During a failure condition, the first wavelength on the second carrier and the second wavelength on the first carrier are reserved for effecting a protection scheme, while the first wavelength on the first carrier and the second wavelength on the second carrier can still be used for unaffected working links.

    摘要翻译： 公开了一种自动保护的光通信环网。 环网包括布置成双向传输的两个光载波。 多个光学可重构节点沿光载波连接。 节点成对通信，定义不重叠的工作链路。 在正常条件下，每对的节点被光学配置为在第一载波上以第一波长在第二载波上与第一波长不同的第二波长在工作链路上交换光信号。 在故障状态期间，第二载波上的第一波长和第一载波上的第二波长被保留用于实现保护方案，而第一载波上的第一波长和第二载波上的第二波长仍可用于不受影响 工作链接

    Connection verification for all-optical cross-connects by signal cross-correlation
    5.
    发明授权
    Connection verification for all-optical cross-connects by signal cross-correlation 有权
    通过信号互相关的全光交叉连接验证

    公开(公告)号：US06804463B1

    公开(公告)日：2004-10-12

    申请号：US09823036

    申请日：2001-03-29

    申请人： Fulvio Arecco ,  Valerio Viscardi ,  Giacomo Losio

    发明人： Fulvio Arecco ,  Valerio Viscardi ,  Giacomo Losio

    IPC分类号： H04B1000

    CPC分类号： H04Q11/0005 ,  H04Q2011/0043 ,  H04Q2011/0083

    摘要： Systems and methods for reliable and low cost optical connection verification. One application is verification and monitoring of optical cross-connect performance. A connection is verified by splitting off optical signals at both ports of the connection, converting the signals to electrical signals, and then cross-correlating to verify connectivity between the ports. Lowpass filtering applied to the electrical signals may be applied to reduce the complexity of the cross-correlation.

    摘要翻译： 用于可靠且低成本的光连接验证的系统和方法。 一个应用是光交叉连接性能的验证和监控。 通过在连接的两个端口分离光信号来验证连接，将信号转换为电信号，然后进行互相关以验证端口之间的连接。 可以应用施加到电信号的低通滤波来降低互相关的复杂度。

    Protocol-less all-optical 1+1 bidirectional revertive linear protection system
    6.
    发明授权
    Protocol-less all-optical 1+1 bidirectional revertive linear protection system 有权
    无协议全光1 + 1双向反向线性保护系统

    公开(公告)号：US08078052B2

    公开(公告)日：2011-12-13

    申请号：US11874678

    申请日：2007-10-18

    申请人： Aldo Aprile ,  Valerio Viscardi

    发明人： Aldo Aprile ,  Valerio Viscardi

    IPC分类号： H04B10/00

    CPC分类号： H04J14/029 ,  H04J14/0279

    摘要： In an optical network a 1+1 bidirectional protection system is presented. Each node across a link has photodiodes to monitor the power of signals received by the node on receiving working and protection optical fibers and also optical switches connected to transmission working and protection optical fibers to modulate signals to its counterpart node across the link. When a node detects a fault in the receiving working optical fiber, not only does the node switch to the receiving protection optical fiber, but it also switches to the transmission protection optical fiber to signal the fault to the node across the link. The optical switches on transmission working and protection optical fibers allow the two nodes across the link to signal each other at a protocol-less or primary protocol level for the link to revert back to its initial state.

    摘要翻译： 在光网络中，提供了1 + 1双向保护系统。 链路上的每个节点具有光电二极管，用于监视节点在接收工作和保护光纤时接收到的信号的功率，以及连接到传输工作和保护光纤的光学开关，以将信号调制到跨越链路的其对应节点。 当节点检测到接收工作光纤中的故障时，不仅节点切换到接收保护光纤，而且还切换到传输保护光纤，以将故障信号通过链路发送给节点。 传输工作和保护光纤上的光交换机允许链路上的两个节点在无协议或主协议级别上相互信令，以使链路恢复到初始状态。

    Protocol-Less All-Optical 1+1 Bidirectional Revertive Linear Protection System
    9.
    发明申请
    Protocol-Less All-Optical 1+1 Bidirectional Revertive Linear Protection System 有权
    无协议的全光1 + 1双向反向线性保护系统

    公开(公告)号：US20090103915A1

    公开(公告)日：2009-04-23

    申请号：US11874678

    申请日：2007-10-18

    申请人： Aldo Aprile ,  Valerio Viscardi

    发明人： Aldo Aprile ,  Valerio Viscardi

    IPC分类号： H04J14/00 ,  H04B10/00

    CPC分类号： H04J14/029 ,  H04J14/0279

    摘要： In an optical network a 1+1 bidirectional protection system is presented. Each node across a link has photodiodes to monitor the power of signals received by the node on receiving working and protection optical fibers and also optical switches connected to transmission working and protection optical fibers to modulate signals to its counterpart node across the link. When a node detects a fault in the receiving working optical fiber, not only does the node switch to the receiving protection optical fiber, but it also switches to the transmission protection optical fiber to signal the fault to the node across the link. The optical switches on transmission working and protection optical fibers allow the two nodes across the link to signal each other at a protocol-less or primary protocol level for the link to revert back to its initial state.

    摘要翻译： 在光网络中，提供了1 + 1双向保护系统。 链路上的每个节点具有光电二极管，用于监视节点在接收工作和保护光纤时接收到的信号的功率，以及连接到传输工作和保护光纤的光学开关，以将信号调制到跨越链路的其对应节点。 当节点检测到接收工作光纤中的故障时，不仅节点切换到接收保护光纤，而且还切换到传输保护光纤，以将故障信号通过链路发送给节点。 传输工作和保护光纤上的光交换机允许链路上的两个节点在无协议或主协议级别上相互信令，以使链路恢复到初始状态。