公开(公告)号：US07224519B2

公开(公告)日：2007-05-29

申请号：US10798662

申请日：2004-03-11

申请人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H01S5/50 ,  H04J14/02

CPC分类号： H01S5/14 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06812 ,  H01S5/1085 ,  H01S5/1092

摘要： A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and spacing are identical to these of WDM channels. A semiconductor optical amplifier (SOA) is laminated on the substrate in an arrangement such that a slant surface of the SOA is opposed to a side surface of the fabry-perot laser, which serves to thereby amplify the multi-wavelength light output from the fabry-perot laser. The semiconductor optical amplifier is driven in a gain saturation state to reduce the relative intensity of noise in the channels of the multi-wavelength light that are simultaneously amplified.

摘要翻译： 多波长光源包括基板，层叠在基板上的fabry-perot激光器，其通过驱动低于预定阈值电流的电流来操作，以产生多波长光，其包括波长和间距与 WDM频道 半导体光放大器（SOA）以这样的布置层压在基板上，使得SOA的倾斜表面与fabry-perot激光器的侧表面相对，其用于放大来自fabry的多波长光输出 激光激光 半导体光放大器以增益饱和状态驱动，以减少同时放大的多波长光的通道中的噪声的相对强度。

公开(公告)号：US07209609B2

公开(公告)日：2007-04-24

申请号：US11144949

申请日：2005-06-03

申请人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/26 ,  H04J14/02

CPC分类号： H04B10/506 ,  H04J14/02

摘要： A light source apparatus for use with optical communication using external-injection light sources, and an optical communication system using the light source apparatus. The light source apparatus for optical communication includes external-injection light sources, and a multiplexer/demultiplexer. The multiplexer/demultiplexer provides light components spectrum-sliced broadband light from a broadband light source as respective external injection light inputs. The multiplexer/demultiplexer includes a first waveguide to transmit the broadband light and multiplexed light with a plurality of wavelengths, a plurality of second waveguides each to transmit light with an associated one of the wavelengths, and a plurality of optical filters each to pass light with an associated one of the wavelengths and to reflect the remaining wavelengths. The pass wavelength of each optical filter is set such that insertion loss distribution of the optical filters at the wavelengths is similar to a gain distribution of the injection light sources at the wavelengths.

摘要翻译： 一种用于使用外部注入光源的光通信的光源装置和使用该光源装置的光通信系统。 用于光通信的光源装置包括外部注入光源和多路复用器/解复用器。 多路复用器/解复用器提供来自宽带光源的光分量光谱切片宽带光作为相应的外部注入光输入。 多路复用器/解复用器包括：第一波导，用于传输宽带光和具有多个波长的多路复用光;多个第二波导，每个用于透射具有相关联的一个波长的光;以及多个光学滤光器， 相关联的一个波长并反射剩余的波长。 设置每个滤光器的通过波长，使得波长处的滤光器的插入损耗分布类似于在波长处的注入光源的增益分布。

公开(公告)号：US20050276602A1

公开(公告)日：2005-12-15

申请号：US11052400

申请日：2005-02-07

申请人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hong-Seok Shin ,  Hyun-Cheol Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H04B10/04 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J2014/0253

摘要： An optical transmitter including a multi-lambda source to output injection light consisting of a plurality of injection wavelengths in channels, a circulator having a first port, a second port, and a third port, the circulator receiving the injection light at the first port, and outputting the received injection light to the second port, and further receiving signal light at the second port, and outputting the received signal light to the third port, an arrayed waveguide grating having a multiplexing port connected to the second port of the circulator, and a plurality of demultiplexing ports, spectrum-slicing injection light received from the circulator at the multiplexing port into a plurality of injection channels, and outputting the injection channels to the demultiplexing ports and further receiving and multiplexing a plurality of signal channels at the demultiplexing ports, into a signal light, and outputting the signal light to the multiplexing port, and a plurality of reflective semiconductor optical amplifiers connected to the demultiplexing ports of the arrayed waveguide grating, respectively, each of the reflective semiconductor optical amplifiers receiving an associated one of the injection channels, and amplifying the associated injection channel to generate an associated one of the signal channels.

摘要翻译： 一种光发射机，包括多λ源，以输出由通道中的多个注入波长组成的注入光，具有第一端口，第二端口和第三端口的循环器，所述循环器在第一端口处接收注入光， 并将所接收的注入光输出到第二端口，并且还在第二端口处接收信号光，并将接收到的信号光输出到第三端口;阵列波导光栅，具有连接到循环器的第二端口的多路复用端口;以及 多个解复用端口，从多路复用端口的循环器接收的频谱分片注入光分成多个注入通道，并将注入通道输出到解复用端口，并进一步在解复用端口接收和复用多个信号通道， 信号光，并将信号光输出到多路复用端口，以及多个反射 分别连接到阵列波导光栅的解复用端口的半导体光放大器，反射半导体光放大器中的每一个接收相关联的一个注入通道，以及放大关联的注入通道以产生相关联的一个信号通道。

公开(公告)号：US20050047727A1

公开(公告)日：2005-03-03

申请号：US10798662

申请日：2004-03-11

申请人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/36 ,  G02F1/39 ,  H01S5/026 ,  H01S5/028 ,  H01S5/10 ,  H01S5/14 ,  H04B10/2507 ,  H04J14/00 ,  H04J14/02

CPC分类号： H01S5/14 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06812 ,  H01S5/1085 ,  H01S5/1092

摘要： A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and spacing are identical to these of WDM channels. A semiconductor optical amplifier (SOA) is laminated on the substrate in an arrangement such that a slant surface of the SOA is opposed to a side surface of the fabry-perot laser, which serves to thereby amplify the multi-wavelength light output from the fabry-perot laser. The semiconductor optical amplifier is driven in a gain saturation state to reduce the relative intensity of noise in the channels of the multi-wavelength light that are simultaneously amplified.

摘要翻译： 多波长光源包括基板，层叠在基板上的fabry-perot激光器，其通过驱动低于预定阈值电流的电流来操作，以产生多波长光，其包括波长和间距与 WDM频道 半导体光放大器（SOA）以这样的布置层压在基板上，使得SOA的倾斜表面与fabry-perot激光器的侧表面相对，其用于放大来自fabry的多波长光输出 激光激光 半导体光放大器以增益饱和状态驱动，以减少同时放大的多波长光的通道中的噪声的相对强度。

公开(公告)号：US20060233550A1

公开(公告)日：2006-10-19

申请号：US11406135

申请日：2006-04-18

申请人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： H04J14/02

CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： A wavelength division multiplexed light source for a passive optical network using the same includes broadband light sources arranged at a desired interval on a wavelength axis, so as to output wavelength bands each having a plurality of structural wavelengths. Further included is a main coarse wavelength division multiplexer (M-CWDM) for multiplexing the lights and a dense wavelength division multiplexer (DWDM) for spectrally dividing the multiplexed light into the channels corresponding to structural wavelengths of the multiplexed light. Groups are consequently generated each of which has a plurality of channels spaced at wavelength period.

摘要翻译： 用于使用该波分复用光纤的无源光网络的波分复用光源包括在波长轴上以期望的间隔布置的宽带光源，以输出每个具有多个结构波长的波长带。 还包括用于复用光的主粗略波分多路复用器（M-CWDM）和用于将多路复用光谱分解成与多路复用光的结构波长相对应的通道的密集波分多路复用器（DWDM）。 因此，产生每个具有在波长周期间隔开的多个通道的组。

公开(公告)号：US08682166B2

公开(公告)日：2014-03-25

申请号：US11620231

申请日：2007-01-05

申请人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Jin-Woo Park ,  Sang-Lok Lee ,  Sung-Kuen Lee

发明人： Dae-Kwang Jung ,  Seong-Taek Hwang ,  Jin-Woo Park ,  Sang-Lok Lee ,  Sung-Kuen Lee

IPC分类号： H04J14/02 ,  H04B10/272

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

摘要： Disclosed is a subcarrier multiplexing type optical communication method including the steps of receiving a first optical signal composed of a plurality of subcarrier channels having different frequencies, creating a second optical signal having a wavelength different from a wavelength of a received signal; and detecting the subcarrier channels from a third optical signal obtained by subjecting the first optical signal to wavelength shift by means of the second optical signal.

摘要翻译： 公开了一种副载波复用型光通信方法，包括以下步骤：接收由具有不同频率的多个子载波信道组成的第一光信号，产生具有与接收信号的波长不同的波长的第二光信号; 以及通过借助于所述第二光信号对所述第一光信号进行波长偏移而获得的第三光信号来检测所述子载波信道。

公开(公告)号：US07369588B2

公开(公告)日：2008-05-06

申请号：US11346974

申请日：2006-02-03

申请人： Seong-Taek Hwang ,  Jong-In Shim ,  Dae-Kwang Jung

发明人： Seong-Taek Hwang ,  Jong-In Shim ,  Dae-Kwang Jung

IPC分类号： H01S3/04

CPC分类号： H01S5/024 ,  H01S5/0261 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/1096 ,  H01S2301/04 ,  H01S2301/173

摘要： Disclosed is an optical semiconductor device that provides an optical gain or optical loss depending on application of electric current. The optical semiconductor device comprises: a lower clad layer; an active layer disposed on the lower clad layer, the active layer generating optical gain or optical loss depending on injection of carriers; an upper clad layer disposed on the active layer, the upper clad layer serving to trap light in the active layer in cooperation with the lower clad layer; and a temperature control part for controlling the temperature distribution of the active layer along the light propagation axis in such a manner that temperature of the active layer varies depending on positions in the active layer.

摘要翻译： 公开了一种根据电流的应用提供光学增益或光学损耗的光学半导体器件。 光学半导体器件包括：下覆盖层; 设置在下包层上的有源层，所述有源层根据载流子的注入而产生光学增益或光损耗; 设置在有源层上的上覆层，上覆盖层用于与下包层一起配合活性层中的光; 以及温度控制部件，用于以有源层的温度根据有源层中的位置而变化的方式控制有源层沿着光传播轴的温度分布。

公开(公告)号：US20070014576A1

公开(公告)日：2007-01-18

申请号：US11403757

申请日：2006-04-13

申请人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

发明人： Sung-Bum Park ,  Seong-Taek Hwang ,  Hyun-Soo Kim ,  Dae-Kwang Jung ,  Hong-Seok Shin ,  Dong-Jae Shin

IPC分类号： H04J14/02

CPC分类号： H04J14/0216 ,  H04J14/0208

摘要： A bidirectional add/drop multiplexer includes first input/output unit inputs a first optical signal multiplexed from a plurality of odd channels and outputs a second optical signal multiplexed from a plurality of added or dropped even channels; a second input/output unit outputs the first optical signal multiplexed from a plurality of added or dropped odd channels and outputs the second optical signal multiplexed from a plurality of even channels; an optical arrayed waveguide grating for multiplexing added or dropped odd channels of the first optical signal input to a first terminal for subsequent transmission to the second input/output unit, multiplexing added or dropped even channels of the second optical signal input to a second terminal for subsequent transmission to the first input/output unit; and an optical combining unit that amplifies the first optical signal and the second optical signal input from the first input/output unit and the second input/output unit.

摘要翻译： 双向分插复用器包括：第一输入/输出单元输入从多个奇数通道复用的第一光信号，并输出从多个相加或丢弃的偶数通道中复用的第二光信号; 第二输入/输出单元输出从多个相加或丢弃的奇数信道复用的第一光信号，并输出从多个偶数信道复用的第二光信号; 光学阵列波导光栅，用于将第一光信号输入的添加或丢弃的奇数通道复用到第一终端，用于随后传输到第二输入/输出单元，将输入的第二光信号的偶数或偶数的偶数通道复用到第二终端， 随后传输到第一输入/输出单元; 以及光合成单元，其放大从第一输入/输出单元和第二输入/输出单元输入的第一光信号和第二光信号。

公开(公告)号：US20060171430A1

公开(公告)日：2006-08-03

申请号：US11346974

申请日：2006-02-03

申请人： Seong-Taek Hwang ,  Jong-In Shim ,  Dae-Kwang Jung

发明人： Seong-Taek Hwang ,  Jong-In Shim ,  Dae-Kwang Jung

IPC分类号： H01S3/04

CPC分类号： H01S5/024 ,  H01S5/0261 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/1096 ,  H01S2301/04 ,  H01S2301/173

摘要： Disclosed is an optical semiconductor device that provides an optical gain or optical loss depending on application of electric current. The optical semiconductor device comprises: a lower clad layer; an active layer disposed on the lower clad layer, the active layer generating optical gain or optical loss depending on injection of carriers; an upper clad layer disposed on the active layer, the upper clad layer serving to trap light in the active layer in cooperation with the lower clad layer; and a temperature control part for controlling the temperature distribution of the active layer along the light propagation axis in such a manner that temperature of the active layer varies depending on positions in the active layer.

摘要翻译： 公开了一种根据电流的应用提供光学增益或光学损耗的光学半导体器件。 光学半导体器件包括：下覆盖层; 设置在下包层上的有源层，所述有源层根据载流子的注入而产生光学增益或光损耗; 设置在有源层上的上覆层，上覆盖层用于与下包层一起配合活性层中的光; 以及温度控制部件，用于以有源层的温度根据有源层中的位置而变化的方式控制有源层沿着光传播轴的温度分布。

公开(公告)号：US20050276603A1

公开(公告)日：2005-12-15

申请号：US10988823

申请日：2004-11-15

申请人： Dae-Kwang Jung ,  Seong-Taek Hwang

发明人： Dae-Kwang Jung ,  Seong-Taek Hwang

IPC分类号： H04B10/03 ,  H04B10/032 ,  H04B10/07 ,  H04B10/077 ,  H04B10/27 ,  H04B10/272 ,  H04B10/275 ,  H04J14/00 ,  H04J14/02 ,  H04L12/44

CPC分类号： H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0293 ,  H04J14/0297

摘要： A passive optical network is disclosed. The network includes a plurality of subscriber units that generate upstream optical signals, respectively, reflect channels applied thereto in association with the subscriber units, respectively, and detect downstream optical signals associated with the subscriber units, respectively, and a central office that output a multiplexed downstream optical signal and a monitoring light, and detects a multiplexed channel signal. The network also includes a remote node that demultiplexes the monitoring light into different channels, outputs the channels to the subscriber units, respectively, multiplexes the channels, which are reflected from the subscriber units, generates the multiplexed channel signal, and outputs the multiplexed channel signal to the central office. The network further includes a first main optical fiber linking the central office and the remote node, and a plurality of second main optical fibers linking the remote node and the subscriber units, respectively.

摘要翻译： 公开了一种无源光网络。 网络包括分别产生上行光信号的多个用户单元，分别反映与用户单元相关联的应用于其的信道，并分别检测与用户单元相关联的下行光信号，以及中心局输出多路复用 下行光信号和监视光，并检测多路复用的信道信号。 该网络还包括将监控光分离成不同信道的远程节点，分别向用户单元输出信道，复用从用户单元反射的信道，生成多路复用信道信号，并输出多路复用信道信号 到中央办公室。 网络还包括连接中心局和远程节点的第一主光纤以及分别连接远程节点和用户单元的多个第二主光纤。