公开(公告)号：US20140079401A1

公开(公告)日：2014-03-20

申请号：US14118922

申请日：2012-05-25

申请人： Han-Hyub Lee ,  Jie-Hyun Lee ,  Eon-Sang Kim ,  Sang-Soo Lee

发明人： Han-Hyub Lee ,  Jie-Hyun Lee ,  Eon-Sang Kim ,  Sang-Soo Lee

IPC分类号： H04B10/079 ,  H04J14/02

CPC分类号： H04J14/0242 ,  H04B10/0795 ,  H04B10/2587 ,  H04J14/02 ,  H04J2014/0253

摘要： A wavelength-division multiplexing optical communication system and a method for measuring optical performance of an output signal for the system. The optical communication system includes: a service-provider device; a local node; and a plurality of subscriber devices. The service-provider device includes: a plurality of first optical transceivers; a first optical multiplexer/demultiplexer (OD/OM) connected to the plurality of first optical transceivers; and a seed-light source providing seed light. Each subscriber device includes a second optical transceiver. The local node connects the service-provider device and the plurality of subscriber devices to each other using a DWDM link comprising: a second multiplexer/demultiplexer (OD/OM); and a single-mode optical fiber for transmission. Here, the optical intensity of an output signal of the second optical transceiver is determined by compensating for the value of the loss caused when the output signal passes through the second OD/OM of the local node.

摘要翻译： 一种波分复用光通信系统和用于测量该系统的输出信号的光学性能的方法。 光通信系统包括：服务提供者设备; 一个本地节点; 和多个订户设备。 服务提供者设备包括：多个第一光收发器; 连接到所述多个第一光收发器的第一光复用器/解复用器（OD / OM）; 和提供种子光的种子光源。 每个用户设备包括第二光收发器。 本地节点使用DWDM链路将服务提供商设备和多个用户设备彼此连接，包括：第二多路复用器/解复用器（OD / OM）; 和用于传输的单模光纤。 这里，通过补偿当输出信号通过本地节点的第二OD / OM时引起的损耗的值来确定第二光收发器的输出信号的光强度。

公开(公告)号：US08422124B2

公开(公告)日：2013-04-16

申请号：US12553914

申请日：2009-09-03

申请人： Han-hyub Lee ,  Byoung-whi Kim ,  Jea-hoon Yu ,  Mahn Yong Park ,  Jai-sang Koh

发明人： Han-hyub Lee ,  Byoung-whi Kim ,  Jea-hoon Yu ,  Mahn Yong Park ,  Jai-sang Koh

IPC分类号： H04B10/17 ,  H01S5/00 ,  H04B10/12

CPC分类号： H04B10/2587 ,  H04J14/02 ,  H04J14/0227 ,  H04J2014/0253

摘要： A spectrum-sliced seed light module for a wavelength division multiplexing passive optical network (WDM PON) is provided. The seed light module includes an optical amplifier to amplify seed light, an optical wavelength filter to transmit broadband light, which is output in opposite direction to an output direction of the seed light, at periodic frequency intervals, and a reflective mirror to reflect light which is spectrum-sliced through the optical wavelength filter to the optical wavelength filter.

摘要翻译： 提供了一种用于波分复用无源光网络（WDM PON）的频谱切片种子光模块。 种子光模块包括用于放大种子光的光放大器，以周期性频率间隔输出与种子光的输出方向相反方向输出宽带光的光波长滤波器和反射光 通过光学波长滤波器对光波长滤波器进行频谱切片。

公开(公告)号：US20120315047A1

公开(公告)日：2012-12-13

申请号：US13567836

申请日：2012-08-06

申请人： Patrick Paul Iannone ,  Han Hyub Lee ,  Kenneth Charles Reichmann ,  Xiang Zhou

发明人： Patrick Paul Iannone ,  Han Hyub Lee ,  Kenneth Charles Reichmann ,  Xiang Zhou

IPC分类号： H04J4/00

CPC分类号： H04B10/2503 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

摘要： A method and apparatus for enabling multiple optical line termination (OLT) devices to share a feeder fiber are disclosed. For example, the optical network comprises a plurality of optical line termination (OLT) devices, where each OLT device having a transceiver for sending and receiving optical signals. The optical network further comprises a wave division multiplexer (WDM) combiner, coupled to the plurality of OLT devices, for combining optical signals received from the plurality of OLT devices. The optical network further comprises an optical extender box comprising at least one hybrid SOA-Raman amplifier, wherein the optical extender box is coupled to the WDM combiner via a first standard single mode fiber section. Finally, the optical network further comprises at least one optical splitter coupled to the optical extender box via a second standard single mode fiber section.

摘要翻译： 公开了一种用于使多个光线路终端（OLT）设备共享馈线光纤的方法和装置。 例如，光网络包括多个光线路终端（OLT）设备，其中每个OLT设备具有用于发送和接收光信号的收发器。 光网络还包括耦合到多个OLT设备的用于组合从多个OLT设备接收的光信号的波分复用器（WDM）组合器。 光网络还包括包含至少一个混合SOA拉曼放大器的光扩展器盒，其中光扩展器盒经由第一标准单模光纤部分耦合到WDM组合器。 最后，光网络还包括经由第二标准单模光纤部分耦合到光扩展器盒的至少一个光分路器。

公开(公告)号：US20120163823A1

公开(公告)日：2012-06-28

申请号：US13335040

申请日：2011-12-22

申请人： Kwang-Ok KIM ,  Han-Hyub LEE ,  Sang-Soo LEE

发明人： Kwang-Ok KIM ,  Han-Hyub LEE ,  Sang-Soo LEE

IPC分类号： H04J14/02 ,  H04B10/16

CPC分类号： H04J14/0227 ,  H04J14/026 ,  H04J14/0282

摘要： A continuous-mode wavelength converting apparatus, a burst-mode wavelength converting apparatus, a remote termination apparatus and a central office termination apparatus for converting a burst-mode upstream wavelength signal into a continuous-mode upstream wavelength signal, and thereby transmitting the signal to a long distance and increasing link capacity. The continuous-mode wavelength converting apparatus may convert a received burst-mode upstream electric signal into a continuous-mode upstream electric signal by inserting a first frame at the front of the signal as an indicator of a start of the signal, inserting a second frame at the end of the burst-mode upstream electric signal as an indicator of an end of the signal, and inserting an idle signal into at least one remaining region of the burst-mode upstream electric signal.

摘要翻译： 连续模式波长转换装置，突发模式波长转换装置，远程终端装置和中心局终端装置，用于将突发模式上行波长信号转换为连续模式上行波长信号，从而将信号发送到 长距离和增加链路容量。 连续模式波长转换装置可以通过在信号的前面插入第一帧作为信号的开始的指示，将接收的突发模式上行电信号转换为连续模式上行电信号，插入第二帧 在突发模式上行电信号结束时作为信号结束的指标，并将空闲信号插入突发模式上游电信号的至少一个剩余区域。

公开(公告)号：US20110188858A1

公开(公告)日：2011-08-04

申请号：US13000459

申请日：2008-07-07

申请人： Byoung Whi Kim ,  Han Hyub Lee ,  Man Yong Park ,  Bong Tae Kim

发明人： Byoung Whi Kim ,  Han Hyub Lee ,  Man Yong Park ,  Bong Tae Kim

IPC分类号： H04J14/00

CPC分类号： H04B10/25754 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0216 ,  H04J14/0232 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0282 ,  H04J2014/0253

摘要： An optical backhaul network for a wireless broadband service is provided. The optical backhaul network for a wireless broadband service includes: a plurality of optical network units for outputting an uplink optical signal having a multiplexed wavelength; an optical line termination for outputting a downlink optical signal of a single mode in order to transmit the downlink optical signal to the plurality of the optical network units in a broadcasting form; and a plurality of remote nodes for outputting a part of the downlink optical signal to the plurality of the optical network units and for outputting the uplink optical signal to the optical line termination. Therefore, one center and a plurality of access points can be efficiently connected.

摘要翻译： 提供了一种用于无线宽带服务的光回程网络。 用于无线宽带业务的光回程网络包括：多个光网络单元，用于输出具有复用波长的上行光信号; 光线路终端，用于输出单模的下行光信号，以便以广播形式将下行光信号发送到多个光网络单元; 以及多个远程节点，用于将所述下行链路光信号的一部分输出到所述多个光网络单元，并用于将所述上行链路光信号输出到所述光线路终端。 因此，可以有效地连接一个中心和多个接入点。

公开(公告)号：US07440695B2

公开(公告)日：2008-10-21

申请号：US10968308

申请日：2004-10-18

申请人： Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Kwangjoon Kim

发明人： Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Kwangjoon Kim

IPC分类号： H04B10/08

CPC分类号： H04B10/071 ,  G01M11/3145

摘要： There are provided a method and system for monitoring an optical transmission line. The system for monitoring the optical transmission line includes: an OTDR (optical time-domain reflectometer) transmitting a monitoring light to an optical transmission line, measuring a reflected light or backscattered light to monitor the optical transmission line; an optical amplification unit amplifying the monitoring light transmitted on the optical transmission line by using a gain clamped optical amplifier; and a filter unit removing a component having a wavelength outside a wavelength band of the monitoring light from a backward ASE (amplified spontaneous emission) generated by the optical amplification unit. Accordingly, it is possible to extend an optical transmission line monitoring distance of the OTDR. As a result, it is possible to prevent deterioration of the performance of the OTDR because of the backward ASE.

摘要翻译： 提供了一种用于监测光传输线的方法和系统。 用于监测光传输线路的系统包括：将光监测光传输到光传输线的OTDR（光时域反射计），测量反射光或反向散射光以监测光传输线; 光放大单元，通过使用增益钳位光放大器来放大在光传输线上传输的监视光; 以及滤光器单元，从由光放大单元产生的反向ASE（放大的自发发射）去除具有监测光的波长带外的波长的分量。 因此，可以延长OTDR的光传输线监视距离。 结果，可以防止由于向后的ASE而导致OTDR的性能的恶化。

公开(公告)号：US08699881B1

公开(公告)日：2014-04-15

申请号：US11564237

申请日：2006-11-28

申请人： Patrick Paul Iannone ,  Han Hyub Lee ,  Kenneth Charles Reichmann ,  Xiang Zhou

发明人： Patrick Paul Iannone ,  Han Hyub Lee ,  Kenneth Charles Reichmann ,  Xiang Zhou

IPC分类号： H04J14/00 ,  H04J14/08

CPC分类号： H04J14/0221 ,  H04J14/0282

摘要： A method and apparatus for providing passive optical networks with extended reach and/or splitting ratio are disclosed. For example, the optical network comprises a first optical line termination (OLT) device having a transceiver for sending and receiving optical signals. The optical network further comprises an optical extender box comprising at least one hybrid SOA-Raman amplifier, wherein the optical extender box is coupled to the first optical line termination device via a first standard single mode fiber section. Finally, the optical network further comprises an optical splitter coupled to the optical extender box via a second standard single mode fiber section.

摘要翻译： 公开了一种用于提供具有扩展到达和/或分离比的无源光网络的方法和装置。 例如，光网络包括具有用于发送和接收光信号的收发器的第一光线路终端（OLT）设备。 光网络还包括包含至少一个混合SOA拉曼放大器的光学延伸器盒，其中光学延伸器盒通过第一标准单模光纤部分耦合到第一光线路终端装置。 最后，光网络还包括经由第二标准单模光纤部分耦合到光扩展器盒的光分路器。

公开(公告)号：US08542425B2

公开(公告)日：2013-09-24

申请号：US12971233

申请日：2010-12-17

申请人： Seung-Hyun Cho ,  Jong Hoon Lee ,  Eun Gu Lee ,  Jie Hyun Lee ,  Han-Hyub Lee ,  Eui Suk Jung ,  Sang Soo Lee

发明人： Seung-Hyun Cho ,  Jong Hoon Lee ,  Eun Gu Lee ,  Jie Hyun Lee ,  Han-Hyub Lee ,  Eui Suk Jung ,  Sang Soo Lee

IPC分类号： G02F1/03

CPC分类号： G02F1/17 ,  G02B6/4215 ,  G02F1/133608 ,  H01S5/0265 ,  H01S5/141

摘要： A wavelength tunable light source includes: an optical gain medium generating light; a wavelength tunable filter positioned on a optical path and transmitting or reflecting only a predetermined wavelength generated from and injected into the optical gain medium; a first housing where the optical gain medium and the wavelength tunable filter are mounted; and an optical fiber block providing the optical wave having the predetermined wavelength come from the wavelength tunable filter, wherein the wavelength tunable filter comprised of a dielectric thin-film filter formed by alternately stacking a first dielectric thin film layer and a second dielectric thin film layer having different refractive index.

摘要翻译： 波长可调光源包括：产生光的光学增益介质; 位于光路上的波长可调滤波器，仅传输或反射从光增益介质产生和注入的预定波长; 安装光学增益介质和波长可调滤波器的第一壳体; 提供具有预定波长的光波长的光纤块来自波长可调谐滤波器，其中波长可调滤波器由通过交替地堆叠第一介电薄膜层和第二介电薄膜层而形成的电介质薄膜滤波器组成 具有不同的折射率。

公开(公告)号：US08488977B2

公开(公告)日：2013-07-16

申请号：US12673607

申请日：2008-08-14

申请人： Byoung Whi Kim ,  Han Hyub Lee ,  Bong Tae Kim

发明人： Byoung Whi Kim ,  Han Hyub Lee ,  Bong Tae Kim

IPC分类号： H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0298 ,  H04J2014/0253

摘要： Provided is a time division multiple access over wavelength division multiplexed passive optical network (TDM-over-WDM-PON) system. According to the TDM-over-WDM-PON system, a downstream optical signal is separated according to a wavelength in a remote node, transmitted to an optical amplifying device located in subscriber equipment, amplified in the optical amplifying device, transmitted back to the remote node, and then transmitted to the subscriber equipment. Also, an upstream optical signal is transmitted to a wavelength converting device located in the subscriber equipment from the remote node, wavelength-converted in the wavelength converting device, returned back to the remote node, and then transmitted to a central office.

摘要翻译： 提供了一种波分复用无源光网络（TDM-over-WDM-PON）系统的时分多址接入。 根据TDM-over-WDM-PON系统，下行光信号根据远程节点中的波长被分离，传输到位于用户设备中的光放大装置，在光放大装置中放大，发送回远端 节点，然后发送给用户设备。 此外，上游光信号从位于用户设备中的波长转换设备从波长转换设备中波长转换的远程节点传输回到远程节点，然后发送到中心局。

公开(公告)号：US20130004174A1

公开(公告)日：2013-01-03

申请号：US13538662

申请日：2012-06-29

申请人： Eun-Gu LEE ,  Eui-Suk JUNG ,  Sil-Gu MUN ,  Jie-Hyun LEE ,  Han-Hyub LEE

发明人： Eun-Gu LEE ,  Eui-Suk JUNG ,  Sil-Gu MUN ,  Jie-Hyun LEE ,  Han-Hyub LEE

IPC分类号： H04J14/02

CPC分类号： H04B10/272 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0267

摘要： A link setup method for a wavelength-division-multiplexing passive optical network (WDM PON) system. The system includes a service providing device, a local node, and a plurality of subscriber devices. The link setup method includes assigning an initial wavelength for communication between the service providing device and a new subscriber device to be installed in the local node. The assigning of the initial wavelength may be performed as a part of process for activating the subscriber device, and this procedure may be performed between a physical layer of the service providing device and a physical layer of the new subscriber device.

摘要翻译： 一种波分复用无源光网络（WDM PON）系统的链路建立方法。 该系统包括服务提供设备，本地节点和多个订户设备。 链路建立方法包括为服务提供设备和要安装在本地节点中的新用户设备之间的通信分配初始波长。 初始波长的分配可以作为用于激活用户设备的过程的一部分来执行，并且该过程可以在服务提供设备的物理层与新用户设备的物理层之间执行。