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1. 发明授权

US07848643B2 Communication recovering system for wavelength division multiplexed passive optical network 有权
标题翻译：波分复用无源光网络通信恢复系统
公开(公告)号：US07848643B2
公开(公告)日：2010-12-07
申请号：US12458240
申请日：2009-07-06
申请人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
发明人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
IPC分类号： H04J14/02
CPC分类号： H04J14/0295 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0291
摘要： A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON) includes a central office and remote nodes. When there is a fault in an optical fiber connecting a first blue/red band coupler to a blue/red band coupler R11, optical signals are inputted/outputted thereto/therefrom through a first 1×2 optical switch and a second blue/red band coupler, and when there is a fault in an optical fiber connecting the second blue/red band coupler to a blue/red band coupler R21, optical signals are inputted/outputted thereto/therefrom through the second 1×2 optical switch and the first blue/red band coupler.
摘要翻译：用于波分复用无源光网络（WDM PON）的通信恢复系统包括中心局和远程节点。当将第一蓝/红频带耦合器连接到蓝/红频带耦合器R11的光纤中存在故障时，通过第一1×2光开关和第二蓝/红带输入/输出光信号耦合器，并且当连接第二蓝/红频带耦合器到蓝/红带耦合器R21的光纤中存在故障时，光信号通过第二1×2光开关输入/输出到其中，并且第一蓝 /红色带耦合器。

2. 发明申请

US20090290866A1 Communication recovering system for wavelength division multiplexed passive optical network 有权
标题翻译：波分复用无源光网络通信恢复系统
公开(公告)号：US20090290866A1
公开(公告)日：2009-11-26
申请号：US12458240
申请日：2009-07-06
申请人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
发明人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
IPC分类号： H04B10/02
CPC分类号： H04J14/0295 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0291
摘要： A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON). The communication recovering system can recover fault of optical fibers between the central office and the remote nodes without additional optical fibers by grouping two remote nodes and employing an AWG having periodic transmission characteristics, and can also simply and rapidly recover such a fault with minimal optical loss using an AWG of 2×N structure and an On-Off optical switch, although protection optical fibers are additionally installed therein. The system can rapidly recover fault of optical fibers between a local office and optical network units, 1:N manner, using 2×2 optical switches, which are installed to each of the optical network units, a reserved transmitter and receiver, and a transceiver. The communication recovering system has advantages in that it can simplify network structure, be cost-effectively implemented, reduce optical loss, and rapidly perform protection of optical fiber fault.
摘要翻译：一种用于波分复用无源光网络（WDM PON）的通信恢复系统。通信恢复系统可以通过对两个远程节点进行分组并采用具有周期性传输特性的AWG来恢复中心局和远程节点之间的光纤故障，而无需额外的光纤，并且还可以以最小的光损耗简单快速地恢复这样的故障使用2xN结构的AWG和On-Off光开关，尽管保护光纤另外安装在其中。该系统可以以1：N的方式快速恢复本地办公室和光网络单元之间的光纤故障，使用安装在每个光网络单元，保留发射机和接收机以及收发器的2x2光开关。通信恢复系统的优点在于可以简化网络结构，经济高效地实现，减少光损耗，快速实现光纤故障保护。

3. 发明授权

US07558477B2 Communication recovering system for wavelength division multiplexed passive optical network 有权
标题翻译：波分复用无源光网络通信恢复系统
公开(公告)号：US07558477B2
公开(公告)日：2009-07-07
申请号：US11260112
申请日：2005-10-28
申请人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
发明人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
IPC分类号： H04J14/02
CPC分类号： H04J14/0295 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0291
摘要： A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON). The communication recovering system can recover fault of optical fibers between the central office and the remote nodes without additional optical fibers by grouping two remote nodes and employing AWGs having periodic transmission characteristics, and can also simply and rapidly recover such a fault with minimal optical loss using 1×N structure of the AWGs and On-Off optical switches, although protection optical fibers are additionally installed therein. The communication recovering system has advantages in that it can simplify network structure, be cost-effectively implemented, reduce optical loss, and rapidly perform protection of optical fiber fault.
摘要翻译：一种用于波分复用无源光网络（WDM PON）的通信恢复系统。通信恢复系统可以通过对两个远程节点进行分组并采用具有周期性传输特性的AWG来恢复中心局和远程节点之间的光纤故障，而无需额外的光纤，并且还可以使用最小的光损耗简单快速地恢复这种故障， AWG和On-Off光开关的1xN结构，尽管保护光纤另外安装在其中。通信恢复系统的优点在于可以简化网络结构，经济高效地实现，减少光损耗，快速实现光纤故障保护。

4. 发明授权

US07542673B2 Fault localization apparatus for optical line in wavelength division multiplexed passive optical network 有权
标题翻译：波分复用无源光网络光路故障定位装置
公开(公告)号：US07542673B2
公开(公告)日：2009-06-02
申请号：US11262738
申请日：2005-11-01
申请人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
发明人： Yun Chur Chung , Eui Seung Son , Kyung Woo Lim , Kwan Hee Han
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04J14/0226 , H04B10/0771 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A fault localization apparatus for an optical line in a wavelength division multiplexed passive optical network is disclosed. The apparatus can detect light loss and fault positions as a channel exhibiting an abnormal receiving state of signals received by each of the upstream receivers is checked, and a monitoring optical signal is used, in which the monitoring optical signal is generated as a pulse is inputted to a light source of the downstream transmitter corresponding to the channel showing such an abnormal receiving state. The apparatus according to the present invention can detect fault positions of optical lines between the central office and the remote nodes and between the remote nodes and the optical network units, since the light source of downstream channel in which faults occur is used as a monitoring light source. The apparatus according to the present invention can be cost-effectively implemented.
摘要翻译：公开了一种波分复用无源光网络中的光线路故障定位装置。该装置可以检测光损失和故障位置，因为检测到由每个上游接收器接收的信号的异常接收状态的信道，并且使用监视光信号，其中监视光信号作为脉冲被输入到对应于表示这种异常接收状态的信道的下游发射机的光源。根据本发明的装置可以检测中心局与远程节点之间以及远程节点与光网络单元之间的光线路的故障位置，因为发生故障的下行信道的光源被用作监视光资源。根据本发明的装置可以成本有效地实现。

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