公开(公告)号：US09008513B2

公开(公告)日：2015-04-14

申请号：US12809065

申请日：2008-10-16

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

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

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0252 ,  H04J2014/0253

摘要： The present invention proposes a wavelength division multiplexing-passive optical network (WDM-PON) system which transmits downstream data to an optical network unit (ONU) as an optical line termination (OLT) receives seed light from a spectrum-sliced external light source module. One characteristic of the proposed WDM-PON system is that optical transmitters of the OLT and ONU are operated regardless of optical wavelength. Another characteristic of the proposed WDM-PON system is that a conventional TDMA-PON (E-PON or G-PON) ONU can be accommodated without a change.

摘要翻译： 本发明提出了一种波分多路复用无源光网络（WDM-PON）系统，其将光线路终端（OLT）从频谱切片的外部光源模块接收种子光，从而将下行数据发送到光网络单元（ONU） 。 所提出的WDM-PON系统的一个特征是OLT和ONU的光发射机无论光学波长如何都被操作。 所提出的WDM-PON系统的另一个特征是可以容易地适应传统的TDMA-PON（E-PON或G-PON）ONU。

公开(公告)号：US08705969B2

公开(公告)日：2014-04-22

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： H04J4/00

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：US08644711B2

公开(公告)日：2014-02-04

申请号：US12445935

申请日：2007-07-06

申请人： Byoung-Whi Kim ,  Manyong Park ,  Woo-Ram Lee ,  Bong-Tae Kim ,  Seung-Hyun Cho ,  Jie-Hyun Lee ,  Geon Jeong ,  Chulyoung Kim ,  Dae-Ung Kim ,  Byung-Yong Kang

发明人： Byoung-Whi Kim ,  Manyong Park ,  Woo-Ram Lee ,  Bong-Tae Kim ,  Seung-Hyun Cho ,  Jie-Hyun Lee ,  Geon Jeong ,  Chulyoung Kim ,  Dae-Ung Kim ,  Byung-Yong Kang

IPC分类号： H04J14/02 ,  H04B10/40

CPC分类号： H01S5/5018 ,  H01S5/0427 ,  H01S5/06253 ,  H01S5/06812 ,  H01S5/50 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： In a Wavelength-Division-Multiplexed Passive Optical Network (WDM-PON) utilizing a conventional downstream optical signal reusing method, there is an inventory problem that different optical transmitter types need to be provided for the operation, management, replacement, etc. of a system. A WDM-PON system according to the present invention, includes: a seed light (SL) unit generating a seed light whose wavelength intervals and center wavelengths are adjusted using at least one seed light source; an optical line terminal (OLT) receiving the wavelength-multiplexed seed light from the seed light unit, transmitting a downstream optical signal to a subscriber of the WDM-PON, and receiving a upstream optical signal from the subscriber; and an optical network unit (ONU) receiving the downstream optical signal from the OLT, flattening and modulating the downstream optical signal with upstream data so that the downstream optical signal is reused for carrying upstream data. It is possible to improve the quality and reliability of downstream transmission by sufficiently increasing an extinction ratio, and improve the quality and reliability of upstream transmission by sufficiently flattening an input downstream optical signal in a semiconductor optical amplifier.

摘要翻译： 在利用传统的下行光信号重用方法的波分复用无源光网络（WDM-PON）中，存在一种库存问题，需要为不同的光发射机类型提供不同的光发射机类型的操作，管理，替换等 系统。 根据本发明的WDM-PON系统包括：种子光（SL）单元，其生成使用至少一个种子光源调整其波长间隔和中心波长的种子光; 接收来自种子光单元的波长复用种子光的光线路终端（OLT）向下行光信号发送WDM-PON的用户，并从用户接收上行光信号; 以及从OLT接收下行光信号的光网络单元（ONU），用下游数据对下行光信号进行平坦化和调制，使下游光信号重新用于承载上行数据。 通过充分提高消光比可以提高下游传输的质量和可靠性，通过在半导体光放大器中充分平坦化输入下行光信号，提高上行传输的质量和可靠性。

公开(公告)号：US08125707B2

公开(公告)日：2012-02-28

申请号：US12773159

申请日：2010-05-04

申请人： Byoung Whi Kim ,  Mahn Yong Park ,  Woo-Ram Lee ,  Tae Yeon Kim

发明人： Byoung Whi Kim ,  Mahn Yong Park ,  Woo-Ram Lee ,  Tae Yeon Kim

IPC分类号： H01S3/00

CPC分类号： H04J14/0226 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/4202 ,  G02B6/4204 ,  H01S5/0425 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/34 ,  H01S5/5018 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical Network (PON) for increasing economical efficiency and practical use of a bandwidth using the RSOA are provided. The PON includes a central office comprising a plurality of optic sources transmitting a downstream signal and a plurality of first receivers receiving an upstream signal; at least one optical network terminal (ONT) including a second receiver receiving the downstream signal and an RSOA which receives the downstream signal, remodulates the downstream signal into the upstream signal, and transmits the upstream signal in loopback mode; and a remote node interfacing the central office with the ONT. The upstream signal and the downstream signal are transmitted between the remote node and the ONT via a single optical fiber. The remote node includes an optical power splitter at its port connected to the ONT.

摘要翻译： 用于补偿光链路中的光损耗的反射半导体光放大器（RSOA），用于提高使用RSOA的极化依赖性的RSOA模块和用于提高经济效率和使用RSOA的带宽的实际使用的无源光网络（PON） 被提供。 PON包括中央局，其包括发送下行信号的多个光源和接收上行信号的多个第一接收机; 包括接收下行信号的第二接收器的至少一个光网络终端（ONT）和接收下行信号的RSOA将下行信号重新调制成上行信号，并以环回方式发送上行信号; 以及将中心局与ONT接口的远程节点。 上行信号和下行信号通过单个光纤在远程节点和ONT之间传输。 远程节点在其端口上连接有ONT的光功率分配器。

公开(公告)号：US08086102B2

公开(公告)日：2011-12-27

申请号：US12226699

申请日：2007-05-08

申请人： Byoung-Whi Kim ,  Mahn-Yong Park ,  Seung-Hyun Cho ,  Woo-Ram Lee

发明人： Byoung-Whi Kim ,  Mahn-Yong Park ,  Seung-Hyun Cho ,  Woo-Ram Lee

IPC分类号： H04B10/20

CPC分类号： H04B10/272 ,  H04B10/2587 ,  H04J14/02 ,  H04J14/0282 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： Provided is a passive optical network (PON) based on a reflective semiconductor optical amplifier (RSOA). In the PON, seed-light-injection RSOAs are used in an optical line terminal (OLT) to achieve the color-less management of the wavelengths of OLT optic sources, and wavelength reuse RSOAs are used to achieve the color-less management of the wavelengths of ONTs. Therefore, problems related to ONT wavelength management can be eliminated by the wavelength reuse RSOAs, and problems related to OLT wavelength management can be eliminated by the seed-light-injection RSOAs.

摘要翻译： 提供了一种基于反射半导体光放大器（RSOA）的无源光网络（PON）。 在PON中，在光线路终端（OLT）中使用种子光注入RSOAs来实现OLT光源的波长的无色管理，并且使用波长重用RSOAs来实现对于 ONT的波长。 因此，可以通过波长复用RSOAs来消除与ONT波长管理相关的问题，并且可以通过种子光注入RSOAs消除与OLT波长管理相关的问题。

公开(公告)号：US08045261B2

公开(公告)日：2011-10-25

申请号：US12773174

申请日：2010-05-04

申请人： Byoung Whi Kim ,  Mahn Yong Park ,  Woo-Ram Lee ,  Tae Yeon Kim

发明人： Byoung Whi Kim ,  Mahn Yong Park ,  Woo-Ram Lee ,  Tae Yeon Kim

IPC分类号： H01S3/00

CPC分类号： H04J14/0226 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/4202 ,  G02B6/4204 ,  H01S5/0425 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/34 ,  H01S5/5018 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： A Reflective Semiconductor Optical Amplifier (RSOA) for compensating for light loss in an optical link, an RSOA module for improving polarization dependency using the RSOA, and a Passive Optical Network (PON) for increasing economical efficiency and practical use of a bandwidth using the RSOA are provided. The PON includes a central office comprising a plurality of optic sources transmitting a downstream signal and a plurality of first receivers receiving an upstream signal; at least one optical network terminal (ONT) including a second receiver receiving the downstream signal and an RSOA which receives the downstream signal, remodulates the downstream signal into the upstream signal, and transmits the upstream signal in loopback mode; and a remote node interfacing the central office with the ONT. The upstream signal and the downstream signal are transmitted between the remote node and the ONT via a single optical fiber. The remote node includes an optical power splitter at its port connected to the ONT.

摘要翻译： 用于补偿光链路中的光损耗的反射半导体光放大器（RSOA），用于提高使用RSOA的极化依赖性的RSOA模块和用于提高经济效率和使用RSOA的带宽的实际使用的无源光网络（PON） 被提供。 PON包括中央局，其包括发送下行信号的多个光源和接收上行信号的多个第一接收机; 包括接收下行信号的第二接收器的至少一个光网络终端（ONT）和接收下行信号的RSOA将下行信号重新调制成上行信号，并以环回方式发送上行信号; 以及将中心局与ONT接口的远程节点。 上行信号和下行信号通过单个光纤在远程节点和ONT之间传输。 远程节点在其端口上连接有ONT的光功率分配器。

公开(公告)号：US20110135309A1

公开(公告)日：2011-06-09

申请号：US12882307

申请日：2010-09-15

申请人： Han-Hyub LEE ,  Seung-Hyun Cho ,  Jie Hyun Lee ,  Manyong Park ,  Byoung Whi Kim ,  Sang Soo Lee

发明人： Han-Hyub LEE ,  Seung-Hyun Cho ,  Jie Hyun Lee ,  Manyong Park ,  Byoung Whi Kim ,  Sang Soo Lee

IPC分类号： H04J14/02

CPC分类号： H04J14/0282 ,  H04B10/2587 ,  H04B10/506

摘要： Provided is an Optical Line Terminal (OLT). The OLT may include a first Wavelength division multiplexer/demultiplexer (WDM MUX/DeMUX) to perform a wavelength demultiplexing on seed light received from a seed light source, and a second Wavelength division demultiplexer (WDM DeMUX) to receive, from at least one ONU/ONT, an upstream optical signal generated using the seed light having the wavelength demultiplexing performed, and to perform a wavelength multiplexing on the received upstream optical signal.

摘要翻译： 提供了一种光线路终端（OLT）。 OLT可以包括用于对从种子光源接收的种子光执行波长解复用的第一波分复用器/解复用器（WDM MUX / DeMUX）和从第一波分多路复用器/解复用器（WDM MUX / DeMUX）接收的至少一个ONU / ONT，使用具有进行了波长解复用的种子光产生的上行光信号，并对所接收的上行光信号执行波长多路复用。

公开(公告)号：US20100278535A1

公开(公告)日：2010-11-04

申请号：US12746568

申请日：2008-12-16

申请人： Byoung Whi Kim

发明人： Byoung Whi Kim

IPC分类号： H04J14/02

CPC分类号： H04B10/272 ,  H04B10/506 ,  H04J14/0221 ,  H04J14/0282

摘要： Provided are a wavelength division multiplexing-passive optical network (WDM-PON) in which a reflective semi-conductor optical amplifier (RSOA) is used as each optical transmitter of an optical line termination (OLT) and an optical network unit (ONU) and additional spectrum-sliced light is injected into RSOAs of each of the OLT and the ONU, and a WDM-PON that is combined with time division multiple access (TDMA) technology, by which the number of included ONUs increases and conventional TDMA ONUs can be used.

摘要翻译： 提供了一种波分复用无源光网络（WDM-PON），其中使用反射半导体光放大器（RSOA）作为光线路终端（OLT）和光网络单元（ONU）的每个光发射机，以及 将附加的频谱切割的光注入到每个OLT和ONU的RSOA中，以及与时分多址（TDMA）技术组合的WDM-PON，通过该技术，所包括的ONU的数量增加，并且传统的TDMA ONU可以 用过的。

公开(公告)号：US07583669B2

公开(公告)日：2009-09-01

申请号：US11133071

申请日：2005-05-18

申请人： Jeong Ju Yoo ,  Tae Yeon Kim ,  Hyun Ho Yun ,  Byoung Whi Kim ,  Nam Uk Kim ,  Jae Gwan Kim ,  Bok Rae Jung ,  Min Ho Kang

发明人： Jeong Ju Yoo ,  Tae Yeon Kim ,  Hyun Ho Yun ,  Byoung Whi Kim ,  Nam Uk Kim ,  Jae Gwan Kim ,  Bok Rae Jung ,  Min Ho Kang

IPC分类号： H04L12/28 ,  H04J14/00 ,  H04B15/00

CPC分类号： H04L45/00 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04L12/185 ,  H04L45/16 ,  H04L45/62 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0069

摘要： The present provides a method of dynamically managing multicast groups and allocating multicast service wavelengths for the highest channel efficiency. According to the present invention, the share indices of wavelengths of all multicast service groups, which employ broadcasting wavelengths and data wavelengths, are periodically ascertained on the basis of IGMP snooping-based technology in a WDM-PON. Based on the ascertainment results, if the channel share index of the group that employs the broadcasting wavelength is smaller than the channel share index of the group that employs the data wavelength, the share index of the wavelength of the multicast group that employs the broadcasting wavelength is maximized by dynamically changing allocation of the wavelength of the multicast group, so that a maximum multicast service can be provided within limited resources.

摘要翻译： 本发明提供一种动态管理多播组并分配多播服务波长以实现最高信道效率的方法。 根据本发明，在WDM-PON中，基于IGMP窥探技术，周期性地确定了采用广播波长和数据波长的所有组播业务组的波长份额指标。 基于确定结果，如果使用广播波长的组的信道共享指数小于采用数据波长的组的信道共享索引，则使用广播波长的多播组的波长的共享索引 通过动态地改变多播组的波长分配来最大化，从而可以在有限的资源内提供最大的组播服务。

公开(公告)号：US07373084B2

公开(公告)日：2008-05-13

申请号：US10913884

申请日：2004-08-05

申请人： Hyun Ho Yun ,  Tae Yeon Kim ,  Jeong Ju Yoo ,  Byoung Whi Kim

发明人： Hyun Ho Yun ,  Tae Yeon Kim ,  Jeong Ju Yoo ,  Byoung Whi Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04B10/40 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0298 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0064

摘要： A termination device for use in a WDM-SCM PON system can effectively support a multi-channel integration function of a WDM/SCM PON system. The termination device contained in a termination end of a WDM/SCM (Wavelength Division Multiplexing/Sub-Carrier Multiplexing) PON (Passive Optical Network) to connect the PON with either a subscriber or an Ethernet service network includes: an Ethernet interface module connected to the Ethernet service network or the subscriber to perform an Ethernet interface function; a WDM/SCM physical layer module physically connected to the WDM/SCM PON to transmit/receive optical signals to/from the WDM/SCM PON; and a MAC (Media Access Control)-bridge module for performing a multiplexing/demultiplexing operation based on a MAC address upon receipt of transmission/reception frames, and reconstructing preambles of the frames while being classified according to channels so that individual Ethernet frames are matching-processed while being classified according to SCM channels of the WDM/SCM physical layer module.

摘要翻译： 用于WDM-SCM PON系统的终端设备可以有效地支持WDM / SCM PON系统的多信道集成功能。 包含在将PON与用户或以太网业务网络连接的WDM / SCM（波分复用/子载波复用）PON（无源光网络）的终端中的终端设备包括：以太网接口模块，连接到 以太网业务网络或用户执行以太网接口功能; 物理上连接到WDM / SCM PON的WDM / SCM物理层模块，用于向/从WDM / SCM PON发送/接收光信号; 以及MAC（媒体访问控制） - 桥接模块，用于在接收到发送/接收帧时基于MAC地址执行复用/解复用操作，并且在根据信道被分类的同时重构帧的前同步码，使得各个以太网帧匹配 在根据WDM / SCM物理层模块的SCM通道进行分类的过程中。