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1. 发明授权

US07623789B2 Low loss WDM add drop node 有权
标题翻译：低损耗WDM加入节点
公开(公告)号：US07623789B2
公开(公告)日：2009-11-24
申请号：US10275889
申请日：2002-04-11
申请人： Magnus Oberg , Ulf Persson
发明人： Magnus Oberg , Ulf Persson
IPC分类号： H04J14/02 , H04B10/02
CPC分类号： H04J14/0227 , H04J14/0206 , H04J14/0208 , H04J14/0209 , H04J14/0216 , H04J14/0241 , H04J14/0283 , H04J14/0291 , H04J14/0294
摘要： In an optical fiber network bidirectional WDM traffic is sent on one optical main transmission fiber (1) between two nodes (A, B) connected in the path of the transmission fiber. The bidirectional traffic between a pair of nodes is carried on two different wavelength channels (Nos. 1, 2), one for each direction. The two wavelength channels are added to/dropped from the traffic in the ring fiber (1) in each node using a two-channel add/drop filter (5e1-2, 5w1-2), e.g. a band add/drop filter. In this way the number of add/drop filters connected in the path of the transmission fiber can be kept as small as possible.
摘要翻译：在光纤网络中，双向WDM业务在连接在传输光纤路径中的两个节点（A，B）之间的一个光学主传输光纤（1）上发送。一对节点之间的双向业务承载在两个不同的波长信道（号1,2）上，每个方向一个。使用双通道加/减滤波器（5e1-2,5w1-2），将两个波长信道添加到每个节点中的环形光纤（1）中的业务/丢弃。一个频带加/减滤波器。以这种方式，连接在传输光纤的路径中的加/减滤波器的数量可以保持尽可能小。

2. 发明授权

US5663790A Method and apparatus for determination of refractive index 失效
$Method and apparatus for determination of refractive index$
标题翻译：用于测定折射率的方法和装置
公开(公告)号：US5663790A
公开(公告)日：1997-09-02
申请号：US532546
申请日：1995-10-06
申请人： Bjorn Ekstrom , Magnus Oberg
发明人： Bjorn Ekstrom , Magnus Oberg
IPC分类号： G01N21/27 , G01N21/41 , G01N21/77
CPC分类号： G01N21/7746 , G01N21/41 , G01N2201/0873
摘要： In a method of determining the refractive index of a gaseous, liquid or solid sample, preferably a gaseous or liquid sample, there is used a waveguide resonator (1) which includes an open waveguide (4) and a closed waveguide (5) located adjacent the open waveguide. The sample is brought to the vicinity of the closed waveguide (5) so as to influence the proximal surroundings of the waveguide and therewith its effective refractive index. Light derived from a light source (9) is coupled to one end of the open waveguide (4) and transmitted light is measured at the other end of the open waveguide to establish the influence of the sample on the resonance wavelength and therewith determine the refractive index of the sample or a sample-related refractive index difference. A device for carrying out the method includes a waveguide resonator having a sample contact area (12) adjacent the closed waveguide (5) of the waveguide resonator.
摘要翻译： PCT No.PCT / SE94 / 00312 Sec。 371日期1995年10月6日 102（e）日期1995年10月6日PCT 1994年4月8日PCT PCT。第WO94 / 24542号公报日期1994年10月27日在确定气体，液体或固体样品（优选气体或液体样品）的折射率的方法中，使用波导谐振器（1），其包括开放波导（4）和闭合波导（5）位于开放波导附近。将样品带到封闭波导（5）附近，以便影响波导的近端周边以及其有效折射率。源自光源（9）的光耦合到开放波导（4）的一端，并且在开放波导的另一端测量透射光，以确定样品对共振波长的影响，从而确定折射率样品指数或样品相关折射率差异。用于执行该方法的装置包括具有与波导谐振器的闭合波导（5）相邻的样本接触区域（12）的波导谐振器。

3. 发明申请

US20070003284A1 OPTICAL COMMUNICATION SYSTEM 有权
标题翻译：光通信系统
公开(公告)号：US20070003284A1
公开(公告)日：2007-01-04
申请号：US11461717
申请日：2006-08-01
申请人： Ulf Persson , Magnus Oberg
发明人： Ulf Persson , Magnus Oberg
IPC分类号： H04J14/02
CPC分类号： H04J14/0201 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： A node is provided in an optical communications network that utilizes a first set of add/drop filter elements for extracting and combining optical signals that are carried on wavelength division multiplexed channels in a first wavelength band. Additionally, an extraction element and a combining element for dropping and adding a service channel associated with the wavelength division multiplexed channels. The extraction element is arranged downstream of the add/drop filter elements. The extraction and combining elements are additionally adapted to drop and add, respectively, at least one further wavelength band carrying at least one optical traffic data channel.
摘要翻译：在光通信网络中提供一个节点，该光通信网络利用第一组加/减滤波器元件来提取和组合在第一波长带中的波分复用信道上承载的光信号。另外，提取元件和用于丢弃并添加与波分复用信道相关联的服务信道的组合元件。提取元件布置在加/减滤光元件的下游。所述提取和组合元件还适于分别移除和添加至少一个携带至少一个光通信数据信道的另外的波长带。

4. 发明授权

US07136583B2 Protection in mixed optical WDM systems 有权
标题翻译：混合光学WDM系统中的保护
公开(公告)号：US07136583B2
公开(公告)日：2006-11-14
申请号：US10168991
申请日：2000-12-28
申请人： Magnus Oberg , Anders Lundberg
发明人： Magnus Oberg , Anders Lundberg
IPC分类号： H04J14/00
CPC分类号： H04J14/029 , H04B1/74 , H04B10/032 , H04J14/0227 , H04J14/0246 , H04J14/0279 , H04J2203/006
摘要： Devices (13.1, 31.1) communicate with each other on a wavelength channel using wavelength specific signals on a working WDM fiber (21) having a parallel protection WDM fiber (23). An SDH system (13.S, 31.S) uses one channel of the WDM system of the fibers as one of the fibers of the working pair of the SDH system and has a separate fiber (37) constituting that fiber of the protecting fiber pair for the SDH-system. To provide an unambiguous or predictable protection behaviour for the SDH system for the case of the working WDM fiber being cut the RETs (29.1, . . . , 29.S) have two modes. In the first mode a RET will be on and always carry traffic when the input power is high enough. In the second mode a RET they will not automatically turn on again after it has first lost the input signal and thereupon the input signal has returned. The RET can then be manually restarted or restarted after some suitable delay. Then the sequence of events will always be unambiguously defined. For a break of the working WDM fiber, the RET will loose its input signal, turn off, and will not immediately turn on again. Thereby there will always be enough time for the protection scheme of the SDH-system to be carried out. The SDH-system will thus automatically have a working protection path, i.e., the now working, former WDM protection fiber.
摘要翻译：设备（13.1,31.1）在具有并行保护WDM光纤（23）的工作WDM光纤（21）上使用波长特定信号在波长信道上彼此通信。 SDH系统（13.S，31.S）使用纤维的WDM系统的一个通道作为SDH系统的工作对的纤维之一，并且具有构成保护纤维的纤维的单独的纤维（37）配对SDH系统。为了在工作的WDM光纤被切割的情况下为SDH系统提供明确或可预测的保护行为，RET（29.1，...，29 S）具有两种模式。在第一种模式下，当输入功率足够高时，RET将开启并始终携带流量。在第二种模式下，RET它们在首先丢失输入信号之后不会自动再次打开，因此输入信号已经返回。然后可以在适当的延迟后手动重新启动或重新启动RET。那么事情的顺序将永远被明确定义。对于工作WDM光纤的中断，RET会丢失其输入信号，关闭，不会立即再次打开。因此，将始终有足够的时间来执行SDH系统的保护方案。因此，SDH系统将自动具有工作保护路径，即现在工作的前WDM保护光纤。

5. 发明授权

US6160648A Method and arrangement for detecting faults in a network 失效
标题翻译：用于检测网络中故障的方法和装置
公开(公告)号：US6160648A
公开(公告)日：2000-12-12
申请号：US934218
申请日：1997-09-19
申请人： Magnus Oberg , Bo Lagerstrom , Mangus Sundelin , Bengt Johansson
发明人： Magnus Oberg , Bo Lagerstrom , Mangus Sundelin , Bengt Johansson
IPC分类号： H04B10/00 , H04B10/02 , H04B10/03 , H04B10/077 , H04B10/08 , H04B10/25
CPC分类号： H04B10/2503 , H04B10/03 , H04B10/0771 , H04B10/0773 , H04B2210/075 , H04B2210/077 , H04B2210/08
摘要： The present invention relates to an arrangement and a method for detecting faults in an optical fiber network, comprising at least two nodes arranged with at least two optical fibers to a bus with the end nodes connected via two spare fibers. Every node comprising a central module (50), at least two protection switches (60,61) and optical amplifiers (21,22,23,24) and said central module comprising at least one central processor (51), at least one logical unit (52), at least one protection signal transmitter (53) and at least one protection signal monitor (54). The end nodes of the bus transmit a protection signal in at least one direction of the bus and said end nodes can detect the own protection signal and the protection signal transmitted from the other end node. All nodes in the bus can detect Optical Power Loss, OPL. The bus will reshape into new end nodes in case of a fault.
摘要翻译：本发明涉及一种用于检测光纤网络中的故障的布置和方法，包括至少两个节点，其布置有至少两根光纤到总线，其中端节点通过两条备用光纤连接。每个节点包括中央模块（50），至少两个保护开关（60,61）和光放大器（21,22,23,24），并且所述中央模块包括至少一个中央处理器（51），至少一个逻辑单元（52），至少一个保护信号发射器（53）和至少一个保护信号监视器（54）。总线的端节点在总线的至少一个方向上发送保护信号，并且所述端节点可以检测到自己的保护信号和从另一端节点发送的保护信号。总线中的所有节点都可以检测光功率损耗，OPL。发生故障时，总线将重新形成新的终端节点。

6. 发明授权

US5963348A Method for assignment of wavelength channels in an optical bus network 失效
标题翻译：在光总线网络中分配波长信道的方法
公开(公告)号：US5963348A
公开(公告)日：1999-10-05
申请号：US875733
申请日：1997-09-16
申请人： Magnus Oberg
发明人： Magnus Oberg
IPC分类号： H04B10/213 , H04J14/02 , H04B10/24 , H04B10/20
CPC分类号： H04J14/0227 , H04J14/028 , H04J14/0283 , H04J14/0291
摘要： Channels are assigned in an optical bus network, including N nodes connected in series to one another by way of a pair of optical fibers, which facilitate simultaneous, two-way communication between all nodes of the bus network. A second pair of optical fibers, which directly connect the first and second nodes of the bus network, is adapted, after protective switching, to maintain the communication in the event of an interruption in the first pair of fibers. Each transmitter on the bus network transmits a certain network channel. Each receiver on the bus network receives a certain wavelength channel and allows other wavelength channels to pass to the next node. The channel which is received by a receiver in a node is entirely removed from the network, whereafter the channel can be re-used for transmission of information between two other nodes. In this way a minimum number of channels can be used for the communication between the nodes, and a minimum number of channels can be assigned to a node in an optical bus network in such a way that the channel assignment can be maintained in the event of an interruption at any point on the bus network.
摘要翻译： PCT No.PCT / SE96 / 00120 Sec。 371日期：1997年9月16日 102（e）日期1997年9月16日PCT提交1996年2月2日PCT公布。公开号WO96 / 24998 日期1996年8月15日通道分配在光总线网络中，包括通过一对光纤彼此串联连接的N个节点，这便于在总线网络的所有节点之间同时进行双向通信。直接连接总线网络的第一和第二节点的第二对光纤在保护切换之后适应在第一对光纤中断的情况下保持通信。总线网络上的每个发射器发送一定的网络信道。总线网络上的每个接收器接收一定的波长信道，并允许其他波长信道传递到下一个节点。由节点中的接收机接收的信道完全从网络中移除，之后信道可以被重新用于在两个其他节点之间传输信息。以这种方式，可以将最少数量的信道用于节点之间的通信，并且可以以最小数量的信道将最小数量的信道分配给光总线网络中的节点，使得在事件中可以维持信道分配总线网络上任何一点的中断。

7. 发明授权

US07343093B2 Protected bidirectional WDM network 有权
标题翻译：受保护的双向WDM网络
公开(公告)号：US07343093B2
公开(公告)日：2008-03-11
申请号：US10499147
申请日：2002-12-18
申请人： Magnus Oberg , Ulf Persson
发明人： Magnus Oberg , Ulf Persson
IPC分类号： H04B10/00
CPC分类号： H04J14/0283 , H04B10/032 , H04B10/2503 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0208 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0216 , H04J14/0284 , H04J14/0291 , H04J14/0294 , H04J14/0295
摘要： An optical WDM ring network includes at least two add/drop nodes connected in a ring path. The ring path comprises only a single optical fiber arranged for bidirectional traffic between the nodes. A 2×2 switch is used in one of the add/drop nodes for switching signals forwarded from the node to the other node to travel either on a first segment of the ring path or on a second, complementary segment of the ring path when required for protection purposes. Signals from the other node to the first node are issued to travel on both segments but the switch selects the actual segment from which the signals are received in the first node. The signals switches by the switch can be high priority signals used in protected channels communicated between the node and another node. On the segment from which the high priority signals are not received, low priority signals in non-protected channels can be communicated between the nodes, these channels also passing the switch.
摘要翻译：光WDM环形网络包括连接在环路径中的至少两个添加/分出节点。环路仅包括布置用于节点之间的双向业务的单个光纤。在其中一个加/减节点中使用2x2开关，用于从节点转发到另一节点的信号，以在需要保护的情况下在环路径的第一段或环路径的第二互补段上行驶目的发出从另一个节点到第一个节点的信号在两个段上行进，但是交换机选择在第一个节点中接收信号的实际段。由交换机切换的信号可以是在节点和另一个节点之间通信的保护信道中使用的高优先级信号。在不接收高优先级信号的段上，可以在节点之间传送非保护信道中的低优先级信号，这些信道也通过交换机。

8. 发明申请

US20050084262A1 Protected bidirectional wdm network 有权
标题翻译：受保护的双向wdm网络
公开(公告)号：US20050084262A1
公开(公告)日：2005-04-21
申请号：US10499147
申请日：2002-12-18
申请人： Magnus Oberg , Ulf Persson
发明人： Magnus Oberg , Ulf Persson
IPC分类号： H04L12/437 , H04B10/032 , H04B10/25 , H04J14/00 , H04J14/02 , H04B10/08
CPC分类号： H04J14/0283 , H04B10/032 , H04B10/2503 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0208 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0216 , H04J14/0284 , H04J14/0291 , H04J14/0294 , H04J14/0295
摘要： An optical WDM ring network includes at least two add/drop nodes connected in a ring path. The ring path comprises only a single optical fiber arranged for bidirectional traffic between the nodes. A 2×2 switch is used in one of the add/drop nodes for switching signals forwarded from the node to the other node to travel either on a first segment of the ring path or on a second, complementary segment of the ring path when required for protection purposes. Signals from the other node to the first node are issued to travel on both segments but the switch selects the actual segment from which the signals are received in the first node. The signals switches by the switch can be high priority signals used in protected channels communicated between the node and another node. On the segment from which the high priority signals are not received, low priority signals in non-protected channels can be communicated between the nodes, these channels also passing the switch.
摘要翻译：光WDM环形网络包括连接在环路径中的至少两个添加/分出节点。环路仅包括布置用于节点之间的双向业务的单个光纤。在其中一个加/减节点中使用2x2开关，用于从节点转发到另一节点的信号，以在需要保护的情况下在环路径的第一段或环路径的第二互补段上行驶目的发出从另一个节点到第一个节点的信号在两个段上行进，但是交换机选择在第一个节点中接收信号的实际段。由交换机切换的信号可以是在节点和另一个节点之间通信的保护信道中使用的高优先级信号。在不接收高优先级信号的段上，可以在节点之间传送非保护信道中的低优先级信号，这些信道也通过交换机。

9. 发明授权

US6034798A Optical network and arrangement and method in such network 失效
标题翻译：这种网络中的光网络和布置方法
公开(公告)号：US6034798A
公开(公告)日：2000-03-07
申请号：US930267
申请日：1997-12-29
申请人： Magnus Oberg
发明人： Magnus Oberg
IPC分类号： H04B10/27 , H04B10/275 , H04B10/278 , H04J14/02 , H04L12/437 , H04L12/44 , H04L12/46 , H04B10/20 , H04J14/00
CPC分类号： H04B10/278 , H04B10/271 , H04B10/275 , H04J14/0227 , H04J14/028 , H04J14/0283 , H04L12/437 , H04L12/4637 , H04L12/44
摘要： An optical network which is arranged to ensure communication between nodes in a lower-order loop and a higher-order loop when there is an interruption in the lower-order loop or in the event of hub failure. Each lower-order loop consists of a bus network with hubs and one or a plurality of nodes. Two optical fibers connect the nodes in each bus network and are used for communication in opposite directions between the nodes. Each bus network comprises precisely two hubs of which the first closes the bus network end at the first end thereof and the second closes the bus network at the other end. The hubs connect the bus networks in a lower-order loop and join this loop to a higher-order loop. Each node in the bus network is arranged to communicate with each hub. Channel allocation can be carried out so that channels received in one node are re-used for transmission on the same fiber from the same node.
摘要翻译： PCT No.PCT / SE96 / 00374 Sec。 371 1997年12月29日第 102（e）日期1997年12月29日PCT 1996年3月26日PCT公布。公开号WO96 / 31964 PCT 日期1996年10月10日一种光网络，其被布置为当低级环路中断或者在集线器故障的情况下，确保低阶环路中的节点与较高阶环路之间的通信。每个低阶循环由具有集线器和一个或多个节点的总线网络组成。两条光纤连接每个总线网络中的节点，并用于节点之间相反方向的通信。每个总线网络精确地包括两个集线器，其中首先在其第一端封闭总线网络端，另一个在另一端封闭总线网络。集线器以低阶循环连接总线网络，并将此循环连接到较高阶循环。总线网络中的每个节点被布置成与每个集线器通信。可以执行信道分配，使得在一个节点中接收的信道被重新用于来自同一节点的同一光纤上的传输。

10. 发明授权

US07218805B2 WDM ring network for flexible connections 有权
标题翻译： WDM环网用于灵活连接
公开(公告)号：US07218805B2
公开(公告)日：2007-05-15
申请号：US10483390
申请日：2002-07-12
申请人： Magnus Oberg
发明人： Magnus Oberg
IPC分类号： G02B6/28 , H04J14/02
CPC分类号： H04J14/0283 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04J14/029 , H04J14/0294 , H04J14/0297 , H04Q11/0062 , H04Q11/0067 , H04Q2011/0022 , H04Q2011/0035 , H04Q2011/0047 , H04Q2011/0092
摘要： A broadcast and select ring network for optical WDM communication includes two parallel fiber rings (1a, 1b) carrying traffic in opposite directions between nodes (3; A, B, C, D). The nodes comprise on their receive side selecting means such as a cross connect device (21) or similar means allowing a flexible selection of the wavelength channels which are to be received by each node. Thereby, any WDM channel in the rings can be selected and received in the nodes. For example, all nodes can receive signals in the same channel for e.g. set up or reconfiguration purposes. Furthermore, the number of receivers in a node can be small but still all channels can be received. The number of transmitters in each a node can also be small since every transmitter can reach every receiver.
摘要翻译：用于光WDM通信的广播和选择环网包括在节点（3; A，B，C，D）之间相反方向承载业务的两个并行光纤环（1a，1b）。节点在其接收侧上包括诸如交叉连接设备（21）的选择装置或允许灵活选择将被每个节点接收的波长信道的类似装置。因此，可以在节点中选择和接收环中的任何WDM信道。例如，所有节点可以在同一信道中接收信号，例如，设置或重新配置的目的。此外，节点中的接收机的数量可以很小，但是仍然可以接收所有的信道。每个节点中的发射机数量也可以很小，因为每个发射机可以到达每个接收机。

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