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    • 24. 发明申请
    • ПАССИВНАЯ ВОЛОКОННО-ОПТИЧЕСКАЯ СЕТЬ
    • 被动光纤网络
    • WO2007086777A1
    • 2007-08-02
    • PCT/RU2006/000710
    • 2006-12-28
    • ПОПОВ Александр Геннадьевич
    • ПОПОВ Александр Геннадьевич
    • H04B10/12G02B6/28
    • H04B10/275G02B6/2821
    • Пассивная волоконно-оптическая сеть содержит однонаправленную волоконно-оптическую петлю 1, N направленных ответвителей 2, 3,..., 6, расположенных в разных точках петли, центральный узел 7 и множество абонентских узлов 8, 9,..., 12. Передатчик 13 центрального узла 7 оптически связан с началом 15 волоконно-оптической петли 1 , а приёмник 14 - с её концом 16. Передатчик 17 и приёмник 18 каждого абонентского узла 8, 9,..., 12 оптически связан с волоконно-оптической петлёй 1 через соответствующий направленный ответвитель 2, 3,..., 6. Направленные ответвители 2, 3,..., 6 от первого к последнему, в порядке их расположения от начала 15 к концу 16 петли 1 выполнены с возрастанием коэффициентов ответвления в последовательности: 1/N, 1/(N-I),..., 1/2, 1 на длине волны излучения передатчика 13 центрального узла 7, и с убыванием коэффициентов ответвления в последовательности: 1, 1/2,..., 1/(N-I), 1/N на длине волны излучения передатчика 17 любого абонентского узла 8,9,..., 12. Передача в сети ведется в двух потоках: от центрального узла 7 к абонентским узлам 8, 9,..., 12; и от абонентских узлов 8, 9,..., 12 к центральному узлу 7. Технический результат заключается в увеличении числа обслуживаемых сетью абонентских узлов.
    • 本发明的无源光纤网络包括位于不同环点的单向光纤回路(1),N个定向耦合器(2,3,... 6),焦点(7)和多个用户点(8 ,9,... 12)。 焦点(7)的发射器(13)光学连接到光纤回路(1)的开始部分(15),并且接收器(14)连接到光纤回路(1)的端部(16)。 每个用户点(8,9,... 12)的发射机(17)和接收机(18)通过对应的耦合器(2,3,... 6)光纤连接到光纤回路(1)。 所述定向耦合器(2,3,... 6)依次以从开始(15)到其末端(16)的循环顺序地按照排序因子根据序列1 / N增加的顺序来实现, 1(N-1),...,1/2,1对应于焦点(7)的发射器(13)的发射波长,并根据序列1,1/2,..., 1 /(N-1),1 / N对任何用户点(8,9,... 12)的发射机(17)的发射波长。 通过网络进行的传输是从两个流程中进行的:从焦点(7)到用户点(8,9,... 12),从那里到焦点(7)。 所述发明使得可以增加由网络服务的用户点的数量。
    • 25. 发明申请
    • SYSTEM, DEVICE AND METHOD OF EXPANDING THE OPERATIONAL BANDWIDTH OF A COMMUNICATION INFRASTRUCTURE
    • 系统,设备和扩展通信基础设施的操作带宽的方法
    • WO2006067786A2
    • 2006-06-29
    • PCT/IL2005/001361
    • 2005-12-19
    • XTEND NETWORKS LTD.ORBACH, ZeevWEINSTEIN, Hillel
    • ORBACH, ZeevWEINSTEIN, Hillel
    • H04N7/173
    • H04J14/0226H04B10/275H04J14/0232H04J14/0246H04J14/025H04J14/0282H04J14/0298
    • Embodiments of the invention include a method, device and/or system of expanding the operational bandwidth of a communication infrastructure. An optical gathering box may include, according to some demonstrative embodiments of the invention, an optical connector to optically connect the apparatus to an optic fiber; and at least one interface including first and second radio-frequency connectors; an optical to radio-frequency converter to convert a downstream optical signal received via the optical connection into an extended downstream radio-frequency signal in an extended downstream frequency band; and a triplexer to route the extended downstream signal to the first radio-frequency connector; to route a legacy downstream radio-frequency signal in a legacy frequency band from the second radio-frequency connector to the first radio-frequency connector; and to route a legacy upstream radio-frequency signal in the legacy frequency band from the first radio-frequency connector to the second radio-frequency connector. Other embodiments are described and claimed.
    • 本发明的实施例包括扩展通信基础设施的操作带宽的方法,设备和/或系统。 根据本发明的一些演示实施例,光学收集箱可以包括光学连接器,以将设备光学地连接到光纤; 以及包括第一和第二射频连接器的至少一个接口; 光转换器,用于将经由所述光连接接收的下行光信号转换成扩展的下行频带的扩展下行射频信号; 以及将所述扩展下行信号路由到所述第一射频连接器的三工器; 将遗留频带中的传统下游射频信号从第二射频连接器路由到第一射频连接器; 并且将传统频带中的传统上游射频信号从第一射频连接器路由到第二射频连接器。 描述和要求保护其他实施例。
    • 26. 发明申请
    • マルチモード光伝送システム及びマルチモード光伝送方法
    • 多模光传输系统和多模光传输方法
    • WO2006013745A1
    • 2006-02-09
    • PCT/JP2005/013572
    • 2005-07-25
    • 松下電器産業株式会社新保 努武増田 浩一
    • 新保 努武増田 浩一
    • H04B10/02
    • H04B10/275H04B10/2581H04J14/0201
    •  光信号をマルチモード伝送する際に発生する多モード分散による影響を軽減することができるマルチモード光伝送システムを提供する。光源(101~10m)は、入力された電気信号を互いに波長が異なる複数の光信号に変換して出力する。波長多重部(200)は、光源(101~10m)から出力された複数の光信号を波長多重して、波長多重信号として出力する。マルチモード光伝送路(300)は、波長多重信号をマルチモードで光伝送する。モード処理部(400)は、マルチモード光伝送路(300)で伝送された波長多重信号から、特定の波長かつ特定の伝搬定数を有するモードの光信号を複数抽出する。光受信部(501~50m)は、抽出された複数の光信号を受信して、受信した光信号を電気信号に変換する。
    • 一种多模光传输系统,能够减轻当以多模式传输光信号时发生的多模色散的影响。 光源(101-10m)在将它们转换成具有不同波长的多个光信号之后输出输入的电信号。 波长复用部(200)对从光源(101-10m)输出的多个光信号的波长进行复用,并输出波长复用信号。 多模光传输线(300)以多模光学地发送波长多路复用信号。 模式处理部(400)从通过多模光传输线(300)发送的波分复用信号中提取具有特定波长和特定传播常数的模式的多个光信号。 光接收部分(501-50m)接收如此提取的多个光信号并将其转换为电信号。
    • 27. 发明申请
    • AN EXCHANGE STRUCTURE AND A METHOD OF CONNECTION CONFIGURATION BETWEEN THE OPTICAL NETWORKS
    • WO2005022782A1
    • 2005-03-10
    • PCT/CN2003/000735
    • 2003-09-01
    • H04B10/00
    • H04B10/271H04B10/27H04B10/275
    • The invention discloses an exchange structure and a method of connection configuration for the structure between the optical networks. The said optical network includes the first network and the second network, the first network and the second network have a number of nodes respectively, the first node of the first network connects with the third node of the second network, the second node of the first network connects with the fourth node of the second network, the method includes: establishing the first traffic channel between one of the first node and the second node, and another node of the first network; and at least by one of the connection between the first node and the third node, and the connection between the second node and the fourth node, and by the first channel, the said another node of the first network communicates with another node of the second network on traffic. By the double-node exchange structure and the traffic configuration means in this invention between a ring network and a mesh network, and between the mesh networks, the advantages of the ring network and the mesh network respectively at the aspect of the protection and the recovery are combined effectively, and the prior connection means between the ring networks is also compatible.
    • 29. 发明申请
    • OPTICAL COMMUNICATION SYSTEM WITH TWO PARALLEL TRANSMISSION PATHS
    • 具有两个并行传输模式的光通信系统
    • WO01078268A1
    • 2001-10-18
    • PCT/EP2001/001975
    • 2001-02-21
    • H04B10/27H04B10/275H04B10/213
    • H04B10/27H04B10/275
    • In an optical communication link a first node (30) with transmission means (50) and a second node with receiving means (40) are connected by at least two optical fibre transmission paths (100,200). One path serves as the working path, while the remaining path or paths serve as protection paths. The transmission means in the first node is connected to an optical signal power splitter (60) which couples the signal power from the transmitting means unequally into the different transmission paths. This uneven coupling of signal power imposes greater losses in one path than in the other or others. By arranging the splitter to couple a higher proportion of the transmitted optical power into the path that has the highest inherent losses the additional loss imposed on this path is reduced. Thus the maximum path loss between any two nodes can be minimised. This in turn means that the link length and also the size of the network is virtually unaffected by using the same transmitter.
    • 在光通信链路中,具有传输装置(50)的第一节点(30)和具有接收装置(40)的第二节点通过至少两个光纤传输路径(100,200)连接。 一个路径用作工作路径,而其余的路径或路径用作保护路径。 第一节点中的传输装置连接到光信号功率分配器(60),其将来自发射装置的信号功率不等地耦合到不同的传输路径中。 这种信号功率的不均匀耦合在一个路径中施加比在其他路径中更大的损耗。 通过布置分离器将更高比例的透射光功率耦合到具有最高固有损耗的路径中,减少了施加在该路径上的附加损耗。 因此,可以最小化任何两个节点之间的最大路径损耗。 这又意味着链路长度以及网络的大小实际上不受使用相同发射机的影响。
    • 30. 发明申请
    • A RECEIVER TRANSPONDER FOR PROTECTED NETWORKS
    • 用于保护网络的接收器传输器
    • WO00055995A1
    • 2000-09-21
    • PCT/SE2000/000544
    • 2000-03-20
    • H04B10/27H04B10/275H04J14/02H04B10/28
    • H04J14/0294H04B10/27H04B10/275H04J14/0201H04J14/0212H04J14/0227H04J14/0241H04J14/0283
    • A receiver transponder to be used in an optical add and drop multiplexer connected in short haul type networks receives light signals from two opposite directions on input fibers (21, 23). The optical input signals are converted to electrical signals by O/E converters (51, 53). The output terminals of the converters are connected to an electronic switch (61) which handles protection switching in a protected ring type network. The output of the switch can be monitored (65) before it enters a reshaping circuit (67) in which the signal is reshaped, cleansed from a supervisory channel and given a proper drive level for a following laser (69). The optical signal from the laser can travel a significant distance through a fiber (71) to a client receiver or sustain other forms of attenuation and still have a sufficient signal power for reliable detection. An electrical output signal can be provided (73) by the reshaping circuit. The converters can be used to protect for one another and to detect channel signal power and a supervisory channel at electric outputs (57, 59). The laser can be a low cost type since the laser is typically used for transmitting light over only moderate distances and the input signal is amplified and reshaped. The electric high frequency switch is generally more reliable and can be more easily monitored than a purely optical switch.
    • 用于在短距离网络中连接的光分插复用器中的接收机应答器从输入光纤(21,23)上的两个相反方向接收光信号。 光输入信号由O / E转换器(51,53)转换成电信号。 转换器的输出端子连接到电子开关(61),其处理受保护的环型网络中的保护切换。 开关的输出可以在其进入重新整形电路(67)之前被监控(65),其中信号被重新整形,从监控通道清洗并给出用于后续激光器的适当的驱动电平(69)。 来自激光器的光信号可以通过光纤(71)传输到客户接收机,或维持其他形式的衰减,并且仍然具有足够的信号功率以进行可靠的检测。 可以由整形电路(73)提供电输出信号(73)。 转换器可用于彼此保护并检测通道信号功率和电气输出端的监控通道(57,59)。 激光器可以是低成本类型,因为激光器通常用于仅在中等距离上传输光,并且输入信号被放大和重新形成。 电高频开关通常比纯光开关更可靠,更容易监测。