公开(公告)号：US20060222365A1

公开(公告)日：2006-10-05

申请号：US11395099

申请日：2006-03-31

申请人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Yun-Je Oh ,  Jin-Woo Park ,  Il-Rae Kim

发明人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Yun-Je Oh ,  Jin-Woo Park ,  Il-Rae Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298

摘要： A SCM-PON using WDM includes: an OLT for transferring downstream data from an external service provider through downstream optical signals and transferring upstream data transferred through upstream optical signals to an outside; an ODN for distributing the downstream optical signals from the OLT and multiplexing the upstream optical signals to the OLT; and a plurality of ONUs for processing the downstream optical signals transferred from the OLT through the ODN and transferring upstream data of subscribers for the OLT through the upstream optical signals, wherein the optical signals between the OLT and the ONUs are divided into wavelength channels with different wavelengths and sub-carrier channels obtained by time-dividing the wavelength channels, and the upstream data and the downstream data are transferred through the sub-carrier channels.

摘要翻译： 使用WDM的SCM-PON包括：OLT，用于通过下行光信号从外部服务提供商传送下行数据，并将通过上行光信号传送的上行数据传送到外部; 用于分配来自OLT的下行光信号并将上行光信号复用到OLT的ODN; 以及多个ONU，用于处理从OLT通过ODN传送的下行光信号，并通过上行光信号传输OLT的用户的上行数据，其中OLT和ONU之间的光信号被分成不同的波长信道 通过时分波长信道获得的波长和子载波信道，并且上行数据和下行数据通过子载波信道传送。

公开(公告)号：US07110168B2

公开(公告)日：2006-09-19

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： H04B10/12

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; 波长分割多路复用装置，被配置为对来自光源的光进行光谱分片，向经反射增益钳位的半导体光放大器提供频谱切割的光，并对由反射增益钳位的光放大器进行增益钳位的多路复用光信号，以及 循环器，用于将由光源产生的光输入到波分多路复用装置，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：US20060153567A1

公开(公告)日：2006-07-13

申请号：US11195436

申请日：2005-08-02

申请人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Sang-Ho Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04J14/00

CPC分类号： H04J14/0297 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0294

摘要： Disclosed is a wavelength-division multiplexing-passive optical network having a central office including a plurality of first working and protection transmit/receive modules, working and protection optical transmitters, and a plurality of first optical switches, the first working and protection transmit/receive modules generating downstream optical signals and detecting upstream optical signals having corresponding wavelengths, the working and protection optical transmitters generating broadcasting optical signals, the first optical switches performing a switching operation when faults occur, a plurality of subscriber units for receiving broadcasting optical signals and downstream optical signals having corresponding wavelengths and generating upstream optical signals, the subscriber units including second optical switches, a remote node including working and protection optical splitters for dividing intensity of the broadcasting optical signals, the remote node being positioned between the subscriber units and the central office, working and protection main optical fibers for linking the central office with the remote node; and a plurality of working and protection branch optical fibers for linking the remote node with the subscriber units, respectively.

摘要翻译： 公开了一种波分复用无源光网络，其具有包括多个第一工作和保护发射/接收模块的中心局，工作和保护光发射机以及多个第一光开关，第一工作和保护发射/接收 产生下行光信号的模块和检测具有相应波长的上行光信号，工作和保护光发射机产生广播光信号，第一光开关在发生故障时执行切换操作;多个用户单元，用于接收广播光信号和下行光信号 具有相应波长并产生上行光信号的信号，用户单元包括第二光开关，包括工作和保护光分路器的远程节点，用于分割广播光信号的强度，远端节点位于 用户单元和中心局，工作和保护主光纤，用于将中心局与远程节点连接起来; 以及分别用于将远程节点与用户单元连接的多个工作和保护分支光纤。

公开(公告)号：US07034997B2

公开(公告)日：2006-04-25

申请号：US10659157

申请日：2003-09-10

申请人： Seong-Taek Hwang ,  Yun-Je Oh

发明人： Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/00

CPC分类号： H04B10/291

摘要： The wideband optical fiber optical includes a circulator. In addition the amplifier outputs the amplified spontaneous emission (ASE) and the S-band optical signals. At least one optical fiber grating is used for passing the C- and L-band optical signals. A wavelength selective splitter outputs the L-band optical signal. A first optical fiber amplifying unit connected with the optical fiber grating and the first port of the wavelength selective splitter, for amplifying the C- and L-band optical signals and for outputting the ASE to the optical fiber grating. A second optical fiber amplifying unit for amplifying the L-band optical signals inputted from the second port of the wavelength selective splitter and for outputting the amplified L-band optical signals to the third terminal of the outputting unit. A third optical fiber amplifying unit amplifies the S-band optical signals input from the third port of the circulator, and outputs the amplified S-band optical signals to the first terminal of the outputting unit.

摘要翻译： 宽带光纤光纤包括循环器。 此外，放大器输出放大的自发发射（ASE）和S波段光信号。 至少一个光纤光栅用于通过C波段和L波段光信号。 波长选择分路器输出L波段光信号。 与光纤光栅和波长选择分离器的第一端口连接的第一光纤放大单元，用于放大C波段和L波段光信号，并将ASE输出到光纤光栅。 第二光纤放大单元，用于放大从波长选择分离器的第二端口输入的L波段光信号，并将放大的L波段光信号输出到输出单元的第三端。 第三光纤放大单元放大从循环器的第三端口输入的S波段光信号，并将放大的S波段光信号输出到输出单元的第一端。

公开(公告)号：US07027218B2

公开(公告)日：2006-04-11

申请号：US10632376

申请日：2003-08-01

申请人： Seong-Taek Hwang ,  Yun-Je Oh

发明人： Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H04B10/12

CPC分类号： H01S3/094003 ,  H01S3/094023 ,  H01S3/1616

摘要： A thulium-doped fiber amplifier is disclosed and includes a thulium-doped fiber to amplify optical signals belonging to S-band, a first pumping unit to output amplified spontaneous emission that represents a peak value in a predetermined wavelength range belonging to C-band, to pump the thulium-doped fiber, and a second pumping unit to output pumping light belonging to the wavelength band different from the C-band to pump the thulium-doped fiber.

摘要翻译： 公开了一种ium掺杂光纤放大器，其包括用于放大属于S波段的光信号的ium掺杂光纤，第一泵浦单元输出表示属于C波段的预定波长范围内的峰值的放大自发发射， 泵浦掺杂doped光纤的第二泵浦单元和输出属于与C波段不同的波长带的泵浦光以泵入掺doped光纤。

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：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：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。