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11. 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。

12. 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。

13. 发明申请

US20060233550A1 Wavelength division multiplexed light source and passive optical network using the same 审中-公开
标题翻译：波分复用光源和无源光网络使用相同
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。

14. 发明申请

US20070014576A1 Bidirectional add/drop multiplexer 审中-公开
标题翻译：双向分插复用器
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。

15. 发明授权

US07123633B2 Method for maintaining mode-locked state of fabry-perot laser irrespective of temperature change and WDM light source using the same method 有权
标题翻译：不管温度变化和WDM光源如何使用相同的方法来维持fabry-perot激光器的锁模状态的方法
公开(公告)号：US07123633B2
公开(公告)日：2006-10-17
申请号：US10691392
申请日：2003-10-22
申请人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh
发明人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H01S3/098 , H04J14/02
CPC分类号： H04J14/02 , H01S5/0268 , H01S5/0608 , H01S5/0654 , H01S5/0656 , H01S5/4006 , H01S5/4087
摘要： A method for maintaining the mode-locked state of a Fabry-Perot (FP) laser and a WDM light source using the same method for use in WDM optical communication are disclosed. The mode-locked state can be maintained irrespective of temperature change, without use of a temperature controller, by spectrum-slicing the incoherent light generated by a light source element and injecting the spectrum-sliced light to the FP laser, then the FP laser amplifies and outputs only a lasing mode coinciding with the wavelength of the injected light, wherein a lasing-mode interval of the FP laser is set to be less than a 3 dB linewidth of the injected light, so that at least one lasing mode exists inside the 3 dB linewidth of the injected light irrespective of changes in external temperature.
摘要翻译：公开了一种使用与WDM光通信相同的方法来维持法布里 - 珀罗（FP）激光器和WDM光源的锁模状态的方法。通过对光源元件产生的非相干光进行频谱分片，并将光谱切片光注入到FP激光器中，不管温度变化如何，可以保持模式锁定状态而不使用温度控制器，然后FP激光放大并且仅输出与注入的光的波长一致的激光模式，其中FP激光器的激光模式间隔被设置为小于注入的光的3dB线宽，使得至少一个激光模式存在于不管外部温度的变化，注入光线的3dB线宽。

16. 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。

17. 发明申请

US20070258713A1 SUBCARRIER MULTIPLEXING TYPE OPTICAL COMMUNICATION METHOD AND PASSIVE OPTICAL NETWORK USING THE SAME 有权
标题翻译： SUBCARRIER多路复用型光通信方法及其使用的被动光网络
公开(公告)号：US20070258713A1
公开(公告)日：2007-11-08
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： H04J14/00
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。

18. 发明申请

US20060222365A1 SCM-PON using WDM 审中-公开
标题翻译： SCM-PON使用WDM
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。

19. 发明申请

US20050074240A1 Wavelength-division-multiplexed passive optical network system using wavelength-seeded light source 审中-公开
标题翻译：使用波长种子光源的波分复用无源光网络系统
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。

20. 发明申请

US20050025484A1 Wavelength-division-multiplexed passive optical network using multi-wavelength lasing source and reflective optical amplification means 审中-公开
标题翻译：波分复用无源光网络采用多波长激光源和反射光放大手段
公开(公告)号：US20050025484A1
公开(公告)日：2005-02-03
申请号：US10781006
申请日：2004-02-18
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： H04J14/00 , H04B10/27 , H04B10/272 , H04B10/54 , H04B10/572 , H04J14/02
CPC分类号： H04B10/2587 , H04J14/02 , H04J14/0226 , H04J14/0232 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253
摘要： A wavelength-division-multiplexed passive optical network using an economical multi-wavelength lasing source and a reflective optical amplification device is disclosed. The wavelength-division-multiplexed passive optical network includes a central office in which a multi-wavelength lasing source is located; a plurality of subscriber terminals for transmitting an upward signal by a refection signal of a multi-wavelength signal transmitted from the central office; and a local office, which is connected among the central office and the subscriber terminals through transmission optical fibers, for demultiplexing the multi-wavelength signal transmitted from the central office and transmitting the demultiplexed signal to the subscriber terminals, and for multiplexing signals inputted from each of the subscriber terminals and transmitting the multiplexed signals to the central office.
摘要翻译：公开了一种使用经济的多波长激光源和反射光放大装置的波分复用无源光网络。波分复用无源光网络包括多波长激光源所在的中心局; 多个用户终端，用于通过从中心局发送的多波长信号的反射信号发送上行信号; 以及通过发送光纤连接在中心局和用户终端之间的本地办公室，用于对从中心局发送的多波长信号进行解复用，并将解复用的信号发送到用户终端，并且用于复用从每个并将复用的信号发送到中心局。

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