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1. 发明授权

US07224519B2 Low noise multi-wavelength light source and wavelength division multiplexing system using same 有权
标题翻译：低噪声多波长光源和使用波分复用系统的波分复用系统
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。

2. 发明申请

US20050047727A1 Low noise multi-wavelength light source and wavelength division multiplexing system using same 有权
标题翻译：低噪声多波长光源和使用波分复用系统的波分复用系统
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。

3. 发明授权

US07398021B2 Optical transmitter and passive optical network using the same 有权
标题翻译：光发射机和无源光网络使用相同
公开(公告)号：US07398021B2
公开(公告)日：2008-07-08
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： H04J14/00
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，并且将注入通道输出到解复用端口，并进一步在多路分用端口处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。

4. 发明申请

US20050276602A1 Optical transmitter and passive optical network using the same 有权
标题翻译：光发射机和无源光网络使用相同
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。

5. 发明授权

US07340173B2 Wavelength division multiplexing optical transmitter using Fabry-Perot laser 有权
标题翻译：波分复用光发射机采用法布里 - 珀罗激光器
公开(公告)号：US07340173B2
公开(公告)日：2008-03-04
申请号：US10776720
申请日：2004-02-11
申请人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Jung-Kee Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
发明人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Jung-Kee Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04J14/02 , H04J14/00
CPC分类号： H04J14/02 , H04B10/506
摘要： A WDM (Wavelength Division Multiplexing) optical transmitter using a Fabry-Perot laser is disclosed. The WDM optical transmitter includes a light source for outputting incoherent light of a prescribed wavelength bandwidth, a circulator having the first to the third ports, for outputting the incoherent light received at the first port coupled to the light source to the second port, and outputting an optical signal received at the second port to the third port coupled to the external waveguide, a WGR (Waveguide Grating Router) having a multiplexing port (MP) coupled to the second port of the circulator and a plurality of demultiplexing ports (DPs), for performing WD (Wavelength Division) demultiplexing on the incoherent light received at the MP to output WD-demultiplexed signals to the plurality of DPs, and performing WD multiplexing on a plurality of channel signals received at the plurality of DPs to output WD-multiplexed signals to the MP, and a plurality of FB (Fabry-Perot) lasers respectively connected to the DPs of the WGR, each FP laser is comprised of a laser cavity, an antireflection coating layer deposited at one end of the laser cavity facing a corresponding DP, and a high reflection coating layer deposited at the other end of the laser cavity, whereby an optical injection efficiency increases and an influence of reflected light is reduced, resulting in facilitation of a wavelength-locked phenomenon.
摘要翻译：公开了一种使用法布里 - 珀罗激光器的WDM（波分复用）光发射机。 WDM光发射机包括用于输出规定波长带宽的非相干光的光源，具有第一至第三端口的循环器，用于将耦合到光源的第一端口处接收到的非相干光输出到第二端口，并输出在第二端口处接收到耦合到外部波导的第三端口的光信号，具有耦合到循环器的第二端口的复用端口（MP）的WGR（波导光栅路由器）和多个解复用端口（DP）用于对在MP处接收到的非相干光进行WD（波分）解复用，以将WD分离的信号输出到多个DP，并且对在多个DP上接收的多个信道信号执行WD复用以输出WD复用信号 MP和分别连接到WGR的DP的多个FB（Fabry-Perot）激光器，每个FP激光器由激光腔，抗雷在激光腔的面对相应的DP的一端沉积的吸收层，以及沉积在激光腔的另一端的高反射涂层，由此光注入效率增加并且反射光的影响减小，导致促进的波长锁定现象。

6. 发明授权

US07254340B2 Apparatus and method for tracking optical wavelength in WDM passive optical network using loop-back light source 有权
标题翻译：使用环回光源在WDM无源光网络中跟踪光波长的装置和方法
公开(公告)号：US07254340B2
公开(公告)日：2007-08-07
申请号：US10780132
申请日：2004-02-17
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： H04J14/02 , H04B10/00
CPC分类号： H04J14/0282 , H04B10/2587 , H04B10/506 , H04B10/572 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J2014/0253
摘要： An optical wavelength tracking apparatus and method in a wavelength division multiplexed (WDM) passive optical network (PON) in which a central office (CO) having a multi-frequency light source is connected to a plurality of optical network units (ONUs) having loop-back light sources through a WDM MUX/DEMUX in a remote node (RN). The power levels of downstream and upstream WDM optical signals are measured. The WDM wavelengths of the multi-frequency light source and the WDM MUX/DEMUX are controlled to be nearly identical in order to minimize the difference between the power levels of the downstream and upstream WDM optical signals.
摘要翻译：一种波分复用（WDM）无源光网络（PON）中的光波长跟踪装置和方法，其中具有多频光源的中心局（CO）连接到具有环路的多个光网络单元（ONU）通过远程节点（RN）中的WDM MUX / DEMUX来返回光源。测量下行和上行WDM光信号的功率电平。控制多频光源和WDM MUX / DEMUX的WDM波长几乎相同，以便最小化下行和上行WDM光信号的功率电平之间的差异。

7. 发明申请

US20060140548A1 OPTICAL TRANSCEIVER AND PASSIVE OPTICAL NETWORK USING THE SAME 失效
标题翻译：光收发器和被动光网络使用它
公开(公告)号：US20060140548A1
公开(公告)日：2006-06-29
申请号：US11185040
申请日：2005-07-20
申请人： Dong-Jae Shin , Chang-Sup Shim , Seong-Taek Hwang , Dae-Kwang Jung
发明人： Dong-Jae Shin , Chang-Sup Shim , Seong-Taek Hwang , Dae-Kwang Jung
IPC分类号： G02B6/36
CPC分类号： G02B6/4246 , G02B6/2706 , G02B6/29361 , G02B6/29385
摘要： Disclosed are an optical transceiver and an passive optical network using the same. The optical transceiver includes a polarization splitter for splitting injected light input from an outside of the optical transceiver into a first polarization component and a second polarization component, a light injected transmitter for receiving the first polarization component and outputting an optical signal generated based on the first polarization component, and an optical receiver for detecting an electrical signal based on the second polarization component.
摘要翻译：公开了一种光收发器和使用其的无源光网络。光收发器包括：偏振分离器，用于将从光收发器的外部输入的注入光分成第一偏振分量和第二偏振分量;光注入发射器，用于接收第一偏振分量，并输出基于第一偏振分量产生的光信号偏振分量和用于基于第二偏振分量检测电信号的光接收器。

8. 发明申请

US20060104636A1 Optical network for bi-directional wireless communication 审中-公开
标题翻译：用于双向无线通信的光网络
公开(公告)号：US20060104636A1
公开(公告)日：2006-05-18
申请号：US11281761
申请日：2005-11-17
申请人： Dae-Kwang Jung , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
发明人： Dae-Kwang Jung , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/20
CPC分类号： H04J14/0291 , H04J14/0227 , H04J14/0241 , H04J14/0282 , H04J14/0283
摘要： A bi-directional metro-access optical network includes a central office for generating beams of different wavelength bands and a plurality of wavelength locked downward optical signals and for detecting wavelength locked upward optical signals; a plurality of nodes for detecting the downward optical signals of different wavelengths and for generating the wavelength locked upward optical signals of which wavelengths are locked by respective wavelength beams; a first optical fiber line for linking together each of the nodes with the central office in a ring shape, transmitting the upward optical signals to the central office, and transmitting the downward optical signals and the beams to each of the nodes; and a second optical fiber line for linking together each of the nodes with the central office in a ring shape along the circumference of the first optical fiber line.
摘要翻译：双向地铁接入光网络包括用于产生不同波长带的波束和多个波长锁定的向下的光信号的中心局和用于检测波长锁定的向上的光信号; 多个节点，用于检测不同波长的向下的光信号，并产生波长锁定的上行光信号，波长由各波长波束锁定; 用于将每个节点与中心局以环形形式连接在一起的第一光纤线路，将向上的光信号传输到中心局，并将向下的光信号和光束传输到每个节点; 以及第二光纤线路，用于将每个节点与中心局沿着第一光纤线路的圆周以环形形状连接在一起。

9. 发明申请

US20060008202A1 Light source apparatus for WDM optical communication and optical communication system 失效
标题翻译：用于WDM光通信和光通信系统的光源设备
公开(公告)号：US20060008202A1
公开(公告)日：2006-01-12
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： G02B6/28
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。

10. 发明授权

US07639949B2 TDM PON and dynamic bandwidth allocation method thereof 失效
标题翻译： TDM PON及其动态带宽分配方法
公开(公告)号：US07639949B2
公开(公告)日：2009-12-29
申请号：US11644570
申请日：2006-12-22
申请人： Dae-Kwang Jung , Seong-Taek Hwang , Jin-Woo Park , Sang-Rok Lee , Seong-Geun Lee
发明人： Dae-Kwang Jung , Seong-Taek Hwang , Jin-Woo Park , Sang-Rok Lee , Seong-Geun Lee
IPC分类号： H04B10/20 , H04B10/12
CPC分类号： H04J14/0226 , H04J14/0247 , H04J14/0252 , H04J14/0282
摘要： A TDM PON including: an optical line terminal; a remote node including multiple secondary optical distributors connected to multiple optical network units; and the multiple optical network units generating and outputting a corresponding upstream optical signal. Each of the secondary optical distributors splits an upstream optical signal input from one of the optical network units connected thereto so as to generate split upstream optical signals and transmits one of the upstream optical signals to the optical line terminal, and transmits another upstream optical signal to a different optical network unit.
摘要翻译：一种TDM PON，包括：光线路终端; 远程节点，包括连接到多个光网络单元的多个次级光分配器; 多个光网络单元生成并输出相应的上行光信号。每个二次光分配器分离从连接到其上的光网络单元之一输入的上行光信号，以产生分离的上行光信号，并将上游光信号之一发送到光线路终端，并将另一上游光信号发送到不同的光网络单元。

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