公开(公告)号：US06944367B2

公开(公告)日：2005-09-13

申请号：US10650414

申请日：2003-08-28

申请人： Jong-Kwon Kim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Jong-Kwon Kim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/10 ,  H04B10/03 ,  H04B10/032 ,  H04J14/00 ,  H04J14/02 ,  G02B6/28

CPC分类号： H04B10/505 ,  H04B10/506 ,  H04J14/02

摘要： There is disclosed an optical source generator for wavelength division multiplexing optical communication systems. The optical source generator includes first and second pumping light generators; a first wavelength router for wavelength-division-demultiplexing first pumping lights inputted into a multiplexing port of its first port section to output the demultiplexed pumping lights to the demultiplexing ports of its second port section, and for wavelength-division-demultiplexing second pumping lights inputted into the multiplexing port of its second port section to output the demultiplexed pumping lights to the demultiplexing ports of its first port section; a plurality of first and second optical fiber amplifiers; a second wavelength router for wavelength-division-multiplexing optical signals inputted from the first optical fiber amplifiers into the demultiplexing ports of its first port section, and outputting the multiplexed optical signals to the multiplexing port of its second port section, and for wavelength-division-multiplexing optical signals inputted from the second optical fiber amplifiers into the demultiplexing ports of its second port section, and outputting the multiplexed optical signals to the multiplexing port of its first port section; and first and second optical band pass filters, wherein two groups of optical sources are generated bilaterally.

摘要翻译： 公开了一种用于波分复用光通信系统的光源发生器。 光源发生器包括第一和第二泵浦光发生器; 第一波长路由器，用于波长分解第一泵浦光，其输入到其第一端口部分的多路复用端口，以将解复用的泵浦光输出到其第二端口部分的解复用端口，以及用于波分复用的第二泵浦光输入 进入其第二端口部分的多路复用端口，以将解复用的泵浦光输出到其第一端口部分的解复用端口; 多个第一和第二光纤放大器; 第二波长路由器，用于将从第一光纤放大器输入的光信号波分复用到其第一端口部分的解复用端口，并将复用的光信号输出到其第二端口部分的多路复用端口，并用于波分 将从第二光纤放大器输入的光信号复用到其第二端口部分的解复用端口，并将多路复用光信号输出到其第一端口部分的多路复用端口; 以及第一和第二光学带通滤波器，其中两组光源是双向产生的。

公开(公告)号：US20050152697A1

公开(公告)日：2005-07-14

申请号：US10922403

申请日：2004-08-19

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Kee-Sung Nam ,  Tae-Sung Park

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Kee-Sung Nam ,  Tae-Sung Park

IPC分类号： H04B10/00 ,  H04B10/27 ,  H04B10/272 ,  H04H1/00 ,  H04H20/69 ,  H04J3/00 ,  H04J4/00 ,  H04J14/02 ,  H04J14/08 ,  H04L12/28 ,  H04L12/44 ,  H04N7/173 ,  H04N7/22 ,  H04N21/2381 ,  H04N21/2389 ,  H04N21/647

CPC分类号： H04J14/0226 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L49/351 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/64322

摘要： An Ethernet passive optical network provides a subscriber with a high speed and large capacity data service and a real time digital broadcast/video service. The network includes an optical line terminal for frame-multiplexing broadcast/video signals, which are obtained by performing a switching operation and a time-slot multiplexing with respect to a plurality of digital broadcast/video data delivered from external broadcasting vendors according to broadcast/video selection information delivered from each user, and communication data delivered through an Internet protocol network.

摘要翻译： 以太网无源光网络为用户提供高速和大容量数据服务以及实时数字广播/视频服务。 网络包括用于帧广播/视频信号的帧多路复用的光线路终端，其通过根据广播/视频信号对从外部广播供应商传送的多个数字广播/视频数据进行切换操作和时隙复用获得， 从每个用户传送的视频选择信息，以及通过因特网协议网络传递的通信数据。

公开(公告)号：US20050141894A1

公开(公告)日：2005-06-30

申请号：US10860717

申请日：2004-06-03

申请人： Sung-Kee Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Sung-Bum Park

发明人： Sung-Kee Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Sung-Bum Park

IPC分类号： H04B10/03 ,  H04B10/00 ,  H04B10/038 ,  H04B10/07 ,  H04B10/079 ,  H04B10/2507 ,  H04B10/275 ,  H04B10/29 ,  H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0208 ,  H04J14/0216 ,  H04J14/0241 ,  H04J14/0283

摘要： A bi-directional add/drop node employed in a bi-directional path-switching network linked by an optical fiber in a loop form is disclosed. The bi-directional add/drop node has a first terminal point and a second terminal point for receiving channels over the optical fiber such that odd channels are inputted through the first terminal point are outputted through the second terminal point and even channels are inputted through the second terminal point are outputted through the first terminal point. The bi-directional add/drop node comprises, a circulation section for circulating the even and odd channels in a predetermined direction, a first input-output section located between the circulation section and the first terminal point wherein the first input-output section outputs the odd channels inputted from the first terminal point to the circulation section through a first input line and outputs the even channels inputted from the circulation section to the first terminal point through a first output line, and a second input-output section positioned between the circulation section and the second terminal point, wherein the second input-output section outputs the even channels inputted from the second terminal point to the circulation section through a second input line and outputs the odd channels inputted from the circulation section to the second terminal point through a second output line.

摘要翻译： 公开了一种在由光纤以环形形式链接的双向路径交换网络中采用的双向加/减节点。 双向分插节点具有用于在光纤上接收信道的第一终端点和第二终端点，使得通过第一终端点输入奇数信道，并通过第二终端点输入偶数信道 第二终点通过第一终点输出。 双向分插节点包括：循环部分，用于沿预定方向循环偶数和奇数通道;第一输入 - 输出部分，位于循环部分和第一终点之间，其中第一输入 - 输出部分输出 通过第一输入线从第一终端点输入到循环部的奇数通道，并且通过第一输出线将从循环部输入的偶数通道输出到第一终点;以及位于循环部之间的第二输入输出部 和第二终点，其中第二输入 - 输出部分通过第二输入线将从第二终端点输入的偶数通道输出到循环部分，并且通过第二输出部分将从循环部分输入的奇数通道输出到第二终点 输出线。

公开(公告)号：US20050141623A1

公开(公告)日：2005-06-30

申请号：US10862610

申请日：2004-06-07

申请人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04L29/10 ,  H04N7/12 ,  H04N7/24

CPC分类号： H04L12/413 ,  H04L65/607 ,  H04N21/23608 ,  H04N21/4344 ,  H04N21/43632

摘要： Disclosed is a transport stream transmission apparatus, for example an MPEG Motion Picture Experts Group)—transport stream transmission apparatus. The transmission apparatus comprising a transmitter including a first media independent interface to generate a data stream, the data stream having a preamble and at least one transport stream, and a first physical layer device to receive a data frame from the first media independent interface, a back plane board to receive the data frame from the transmitter, and enable distribution of the received data frame to individual subscribers, and a second media independent interface to receive at least one transport stream from the second physical layer device, and enable individual subscribers to received transport stream, wherein the second media independent interface includes a second physical layer device to identify a preamble of the data frame received from the back plane board, perform a clock recovery operation, and generate at least one transport stream of the data frame.

摘要翻译： 公开了传输流传输装置，例如MPEG运动图像专家组） - 传输流传输装置。 传输设备包括发射机，其包括用于生成数据流的第一媒体独立接口，所述数据流具有前导码和至少一个传输流，以及第一物理层设备，用于从所述第一媒体独立接口接收数据帧; 背板接收来自发射机的数据帧，并且使接收到的数据帧能够分配给各个用户;以及第二媒体独立接口，用于从第二物理层设备接收至少一个传输流，并使各个用户能够接收 传输流，其中所述第二媒体独立接口包括第二物理层设备，以识别从所述背板接收的数据帧的前同步码，执行时钟恢复操作，并且生成所述数据帧的至少一个传输流。

公开(公告)号：US06894830B2

公开(公告)日：2005-05-17

申请号：US10054322

申请日：2002-01-22

申请人： Chang-Hee Lee ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun Deok Kim ,  Jeong-Hun Shin ,  Yunhee Cho

发明人： Chang-Hee Lee ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun Deok Kim ,  Jeong-Hun Shin ,  Yunhee Cho

IPC分类号： H01S3/10 ,  G02B6/42 ,  H01S3/30 ,  H01S5/50 ,  H04B10/00 ,  H04B10/2525 ,  H04B10/29 ,  H04B10/294 ,  H04B10/297 ,  H04J14/00 ,  H04J14/02 ,  G02F1/35 ,  H04B10/16

CPC分类号： H04B10/297

摘要： Disclosed is a bi-directional optical-amplifier module including first through fourth optical amplifiers, a mid-stage device for performing a desired signal processing for an upward or downward optical signal passing therethrough, a first optical-signal-path-setting device for supplying an optical signal inputted to a first input/output terminal of the bi-directional optical-amplifier module while outputting an optical signal outputted from the fourth optical amplifier to the first input/output terminal, a second optical-signal-path-setting device for supplying an optical signal inputted to a second input/output terminal of the bi-directional optical-amplifier module while outputting an optical signal outputted from the third optical amplifier to the second input/output terminal, a third optical-signal-path-setting device for outputting an optical signal outputted from the first optical amplifier to a first input/output terminal of the mid-stage device while supplying an optical signal outputted from the first input/output terminal of the mid-stage device to the fourth optical amplifier, and a fourth optical-signal-path-setting device for outputting an optical signal outputted from the second optical amplifier to a second input/output terminal of the mid-stage device while supplying an optical signal outputted from the second input/output terminal of the mid-stage device to the third optical amplifier.

摘要翻译： 公开了一种双向光放大器模块，包括第一到第四光放大器，用于对通过其的向上或向下的光信号执行期望的信号处理的中级装置，用于供应的第一光信号路径设置装置 输出到所述双向光放大器模块的第一输入/输出端的光信号，同时将从所述第四光放大器输出的光信号输出到所述第一输入/输出端;第二光信号路径设置装置， 提供输入到双向光放大器模块的第二输入/输出端的光信号，同时将从第三光放大器输出的光信号输出到第二输入/输出端;第三光信号路径设定装置 用于在提供光信号的同时将从第一光放大器输出的光信号输出到中级装置的第一输入/输出端 从中段装置的第一输入/输出端子输出到第四光放大器;以及第四光信号路径设置装置，用于将从第二光放大器输出的光信号输出到第二输入/输出端 中间级装置，同时将从中级装置的第二输入/输出端子输出的光信号提供给第三光放大器。

公开(公告)号：US20050088724A1

公开(公告)日：2005-04-28

申请号：US10847109

申请日：2004-05-17

申请人： Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H01S5/50 ,  G02B6/28 ,  H01S3/00 ,  H01S3/23 ,  H01S5/00 ,  H04B10/2507 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/506 ,  H01S3/2333 ,  H01S3/2383 ,  H01S5/005 ,  H01S5/5072 ,  H01S2301/02

摘要： Disclosed are optical signal transmission apparatus including a reflective gain-clamped semiconductor optical amplifier and optical communication system using the optical signal transmission apparatus, which can improve modulation speed and optical power by effectively suppressing intensity noise of an incoherent light source. The optical signal transmission apparatus comprises a light source; a reflective gain-clamped semiconductor optical amplifier to generate gain-clamped optical signals having a substantially constant output intensity in a gain saturation region; a wavelength division multiplexing apparatus configured to spectrum-slice light from the light source, provide the spectrum-sliced light to the reflective gain-clamped semiconductor optical amplifier, and multiplex optical signals gain-clamped by the reflective gain-clamped optical amplifier. and a circulator for inputting the light generated by the light source to the wavelength division multiplexing apparatus, and outputting the optical signal multiplexed by the wavelength division multiplexing apparatus to a transmission link.

摘要翻译： 公开了包括使用光信号传输装置的反射增益钳位半导体光放大器和光通信系统的光信号传输装置，其可以通过有效地抑制非相干光源的强度噪声来提高调制速度和光功率。 光信号传输装置包括光源; 反射增益钳位半导体光放大器，用于产生在增益饱和区中具有基本上恒定的输出强度的增益钳位光信号; 波分多路复用装置，被配置为对来自光源的光进行光谱分片，将光谱切片光提供给反射增益钳位半导体光放大器，并且复用由反射增益钳位光放大器增益钳位的光信号。 以及循环器，用于将由光源产生的光输入到波分复用装置，并将由波分多路复用装置复用的光信号输出到传输链路。

公开(公告)号：US20050074240A1

公开(公告)日：2005-04-07

申请号：US10778426

申请日：2004-02-13

申请人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04B10/24 ,  H04B10/207 ,  H04J14/02 ,  H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： An economical wavelength-division-multiplexed passive optical network (WDM-PON) system is realized by directly modulating a wavelength-seeded light source to transmit upstream or downstream data, without using an expensive external modulator. A multiplexed signal having the same wavelength as the waveguide grating is generated and used to control the temperature of the waveguide grating and adjust the wavelength of a wavelength-division-multiplexed signal routed to a transfer link. The wavelength selectivity and stabilization of each light source are not required. Since upstream and downstream signals can be multiplexed and demultiplexed concurrently by each waveguide grating located in the central office and the remote node, it is possible to reduce the number of waveguide gratings used in a WDM optical network. In addition, upstream and downstream signals can be transmitted concurrently using a single-strand transfer optical fiber, thereby realizing an economical and efficient WDM-PON.

摘要翻译： 通过直接调制波长种子光源来传输上游或下游数据，实现了经济的波分复用无源光网络（WDM-PON）系统，而不需要昂贵的外部调制器。 产生具有与波导光栅相同波长的多路复用信号，并用于控制波导光栅的温度并调节路由到传输链路的波分复用信号的波长。 不需要每个光源的波长选择性和稳定性。 由于可以通过位于中心局和远程节点中的每个波导光栅同时复用和解复用上游和下行信号，所以可以减少在WDM光网络中使用的波导光栅的数量。 此外，可以使用单股传输光纤同时传输上行和下行信号，从而实现经济高效的WDM-PON。

公开(公告)号：US20050047785A1

公开(公告)日：2005-03-03

申请号：US10818194

申请日：2004-04-05

申请人： Seong-Taek Hwang ,  Dae-Kwang Jung ,  Hoon Kim ,  Yun-Je Oh ,  Chang-Sup Shim

发明人： Seong-Taek Hwang ,  Dae-Kwang Jung ,  Hoon Kim ,  Yun-Je Oh ,  Chang-Sup Shim

IPC分类号： G02B6/42 ,  H04B10/00 ,  H04B10/272 ,  H04J14/00 ,  H04J14/02 ,  H04L12/28 ,  H04L12/44

CPC分类号： H04J14/0282 ,  G02B6/4246 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J2014/0253

摘要： A bi-directional WDM-PON and a method for allocating a wavelength band are disclosed. In the bi-directional WDM-PON, bi-directional transceiver modules are used to transmit optical signals of different wavelengths in the upstream and downstream directions. An L-band and an S-band are used to allocate wavelength bands to the upstream and downstream optical signals so that a wavelength band interval at which the respective wavelength bands of the upstream and downstream optical signals are spaced is set between 50 nm to 150 nm.

摘要翻译： 公开了双向WDM-PON和分配波长带的方法。 在双向WDM-PON中，双向收发模块用于在上行和下行方向传输不同波长的光信号。 使用L波段和S波段将波长带分配给上游和下游光信号，使得上游和下游光信号的相应波长带间隔开的波长带间隔设置在50nm至150nm nm。

公开(公告)号：US20050041971A1

公开(公告)日：2005-02-24

申请号：US10792322

申请日：2004-03-03

申请人： Jea-Hyuck Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Jea-Hyuck Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/10 ,  H04B10/2507 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/296 ,  H04B10/2503 ,  H04J14/02

摘要： A multi-wavelength optical transmitter which multiplexes a plurality of channels having different wavelengths into an optical signal for output includes lasers for generating mode-locked channels by corresponding incoherent light received in the lasers. The transmitter also has a semiconductor optical amplifier for amplifying, while in a gain saturation state, the optical signal multiplexed by the multiplexer/demultiplexer. Light from a broadband light source is directed by a circulator to the multiplexer/demultiplexer for demultiplexing among the lasers. Light back from the lasers is multiplexed and then directed by the circulator and amplified by a semiconductor optical amplifier for output external to the transmitter.

摘要翻译： 将具有不同波长的多个信道多路复用到用于输出的光信号中的多波长光发射机包括用于通过在激光器中接收的相应非相干光产生锁模信道的激光器。 发射机还具有半导体光放大器，用于在增益饱和状态下放大由多路复用器/解复用器多路复用的光信号。 来自宽带光源的光由循环器引导到多路复用器/解复用器，用于激光器之间的解复用。 来自激光器的光反射被多路复用，然后由循环器引导并由半导体光放大器放大，以便在发射机外部输出。

公开(公告)号：US20050030902A1

公开(公告)日：2005-02-10

申请号：US10798165

申请日：2004-03-11

申请人： Do-In Choi ,  Lae-Kyoung Kim ,  Hee-Won Cheung ,  Yun-Je Oh

发明人： Do-In Choi ,  Lae-Kyoung Kim ,  Hee-Won Cheung ,  Yun-Je Oh

IPC分类号： H04L12/28 ,  H04L12/40 ,  H04L12/42 ,  H04L12/64 ,  H04L12/26 ,  H04L12/403

CPC分类号： H04L12/6418 ,  H04L12/2803 ,  H04L12/40097 ,  H04L12/42

摘要： An IEEE 1394-based unidirectional ring system for an indoor backbone network is disclosed. In the ring system, an RG is used for connection to an external large-capacity network, and an SG is connected to the RG. The SG functions as a clock master to synchronize whole clock signals in the system, manages traffic in the indoor backbone network, manages buses in the indoor backbone network, and monitors the physical states of transmission lines in indoor backbone network. The SG and the SPs form a unidirectional ring structure. A plurality of SPs is configured to load the user data over the indoor backbone network or extract user-desired data from the indoor backbone network to provide user-desired services to a user.

摘要翻译： 公开了一种用于室内骨干网的基于IEEE 1394的单向环形系统。 在环系统中，RG用于连接外部大容量网络，SG连接到RG。 SG作为时钟主机，用于同步系统中的整个时钟信号，管理室内骨干网中的流量，管理室内骨干网中的总线，监控室内骨干网中传输线的物理状态。 SG和SP形成单向环结构。 多个SP被配置为通过室内骨干网络加载用户数据，或者从室内骨干网络提取用户期望的数据，以向用户提供用户期望的服务。